209589760

素因数分解:

$2^9\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1$

素因数の和:212

約数の個数: 160

約数和(自身を含む): 549964800

約数和(自身を除く): 340375040

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 31, 32, 38, 40, 62, 64, 76, 80, 95, 124, 128, 139, 152, 155, 160, 190, 248, 256, 278, 304, 310, 320, 380, 496, 512, 556, 589, 608, 620, 640, 695, 760, 992, 1112, 1178, 1216, 1240, 1280, 1390, 1520, 1984, 2224, 2356, 2432, 2480, 2560, 2641, 2780, 2945, 3040, 3968, 4309, 4448, 4712, 4864, 4960, 5282, 5560, 5890, 6080, 7936, 8618, 8896, 9424, 9728, 9920, 10564, 11120, 11780, 12160, 13205, 15872, 17236, 17792, 18848, 19840, 21128, 21545, 22240, 23560, 24320, 26410, 34472, 35584, 37696, 39680, 42256, 43090, 44480, 47120, 48640, 52820, 68944, 71168, 75392, 79360, 81871, 84512, 86180, 88960, 94240, 105640, 137888, 150784, 163742, 169024, 172360, 177920, 188480, 211280, 275776, 301568, 327484, 338048, 344720, 355840, 376960, 409355, 422560, 551552, 654968, 676096, 689440, 753920, 818710, 845120, 1103104, 1309936, 1352192, 1378880, 1507840, 1637420, 1690240, 2206208, 2619872, 2757760, 3274840, 3380480, 5239744, 5515520, 6549680, 6760960, 10479488, 11031040, 13099360, 20958976, 26198720, 41917952, 52397440, 104794880, 209589760]

約数ペア:

[(1, 209589760), (2, 104794880), (4, 52397440), (5, 41917952), (8, 26198720), (10, 20958976), (16, 13099360), (19, 11031040), (20, 10479488), (31, 6760960), (32, 6549680), (38, 5515520), (40, 5239744), (62, 3380480), (64, 3274840), (76, 2757760), (80, 2619872), (95, 2206208), (124, 1690240), (128, 1637420), (139, 1507840), (152, 1378880), (155, 1352192), (160, 1309936), (190, 1103104), (248, 845120), (256, 818710), (278, 753920), (304, 689440), (310, 676096), (320, 654968), (380, 551552), (496, 422560), (512, 409355), (556, 376960), (589, 355840), (608, 344720), (620, 338048), (640, 327484), (695, 301568), (760, 275776), (992, 211280), (1112, 188480), (1178, 177920), (1216, 172360), (1240, 169024), (1280, 163742), (1390, 150784), (1520, 137888), (1984, 105640), (2224, 94240), (2356, 88960), (2432, 86180), (2480, 84512), (2560, 81871), (2641, 79360), (2780, 75392), (2945, 71168), (3040, 68944), (3968, 52820), (4309, 48640), (4448, 47120), (4712, 44480), (4864, 43090), (4960, 42256), (5282, 39680), (5560, 37696), (5890, 35584), (6080, 34472), (7936, 26410), (8618, 24320), (8896, 23560), (9424, 22240), (9728, 21545), (9920, 21128), (10564, 19840), (11120, 18848), (11780, 17792), (12160, 17236), (13205, 15872)]