398446720

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{151}}^1$

素因数の和:227

約数の個数: 256

約数和(自身を含む): 1190707200

約数和(自身を除く): 792260480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 31, 32, 35, 38, 40, 56, 62, 64, 70, 76, 80, 95, 112, 124, 128, 133, 140, 151, 152, 155, 160, 190, 217, 224, 248, 266, 280, 302, 304, 310, 320, 380, 434, 448, 496, 532, 560, 589, 604, 608, 620, 640, 665, 755, 760, 868, 896, 992, 1057, 1064, 1085, 1120, 1178, 1208, 1216, 1240, 1330, 1510, 1520, 1736, 1984, 2114, 2128, 2170, 2240, 2356, 2416, 2432, 2480, 2660, 2869, 2945, 3020, 3040, 3472, 3968, 4123, 4228, 4256, 4340, 4480, 4681, 4712, 4832, 4960, 5285, 5320, 5738, 5890, 6040, 6080, 6944, 8246, 8456, 8512, 8680, 9362, 9424, 9664, 9920, 10570, 10640, 11476, 11780, 12080, 12160, 13888, 14345, 16492, 16912, 17024, 17360, 18724, 18848, 19328, 19840, 20083, 20615, 21140, 21280, 22952, 23405, 23560, 24160, 27776, 28690, 32767, 32984, 33824, 34720, 37448, 37696, 40166, 41230, 42280, 42560, 45904, 46810, 47120, 48320, 57380, 65534, 65968, 67648, 69440, 74896, 75392, 80332, 82460, 84560, 85120, 88939, 91808, 93620, 94240, 96640, 100415, 114760, 131068, 131936, 135296, 138880, 149792, 160664, 163835, 164920, 169120, 177878, 183616, 187240, 188480, 200830, 229520, 262136, 263872, 299584, 321328, 327670, 329840, 338240, 355756, 367232, 374480, 376960, 401660, 444695, 459040, 524272, 527744, 599168, 622573, 642656, 655340, 659680, 676480, 711512, 748960, 803320, 889390, 918080, 1048544, 1245146, 1285312, 1310680, 1319360, 1423024, 1497920, 1606640, 1778780, 1836160, 2097088, 2490292, 2570624, 2621360, 2638720, 2846048, 2995840, 3112865, 3213280, 3557560, 4194176, 4980584, 5242720, 5692096, 6225730, 6426560, 7115120, 9961168, 10485440, 11384192, 12451460, 12853120, 14230240, 19922336, 20970880, 24902920, 28460480, 39844672, 49805840, 56920960, 79689344, 99611680, 199223360, 398446720]

約数ペア:

[(1, 398446720), (2, 199223360), (4, 99611680), (5, 79689344), (7, 56920960), (8, 49805840), (10, 39844672), (14, 28460480), (16, 24902920), (19, 20970880), (20, 19922336), (28, 14230240), (31, 12853120), (32, 12451460), (35, 11384192), (38, 10485440), (40, 9961168), (56, 7115120), (62, 6426560), (64, 6225730), (70, 5692096), (76, 5242720), (80, 4980584), (95, 4194176), (112, 3557560), (124, 3213280), (128, 3112865), (133, 2995840), (140, 2846048), (151, 2638720), (152, 2621360), (155, 2570624), (160, 2490292), (190, 2097088), (217, 1836160), (224, 1778780), (248, 1606640), (266, 1497920), (280, 1423024), (302, 1319360), (304, 1310680), (310, 1285312), (320, 1245146), (380, 1048544), (434, 918080), (448, 889390), (496, 803320), (532, 748960), (560, 711512), (589, 676480), (604, 659680), (608, 655340), (620, 642656), (640, 622573), (665, 599168), (755, 527744), (760, 524272), (868, 459040), (896, 444695), (992, 401660), (1057, 376960), (1064, 374480), (1085, 367232), (1120, 355756), (1178, 338240), (1208, 329840), (1216, 327670), (1240, 321328), (1330, 299584), (1510, 263872), (1520, 262136), (1736, 229520), (1984, 200830), (2114, 188480), (2128, 187240), (2170, 183616), (2240, 177878), (2356, 169120), (2416, 164920), (2432, 163835), (2480, 160664), (2660, 149792), (2869, 138880), (2945, 135296), (3020, 131936), (3040, 131068), (3472, 114760), (3968, 100415), (4123, 96640), (4228, 94240), (4256, 93620), (4340, 91808), (4480, 88939), (4681, 85120), (4712, 84560), (4832, 82460), (4960, 80332), (5285, 75392), (5320, 74896), (5738, 69440), (5890, 67648), (6040, 65968), (6080, 65534), (6944, 57380), (8246, 48320), (8456, 47120), (8512, 46810), (8680, 45904), (9362, 42560), (9424, 42280), (9664, 41230), (9920, 40166), (10570, 37696), (10640, 37448), (11476, 34720), (11780, 33824), (12080, 32984), (12160, 32767), (13888, 28690), (14345, 27776), (16492, 24160), (16912, 23560), (17024, 23405), (17360, 22952), (18724, 21280), (18848, 21140), (19328, 20615), (19840, 20083)]