491555840

素因数分解:

$2^{10}\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{163}}^1$

素因数の和:238

約数の個数: 176

約数和(自身を含む): 1289118720

約数和(自身を除く): 797562880

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 31, 32, 38, 40, 62, 64, 76, 80, 95, 124, 128, 152, 155, 160, 163, 190, 248, 256, 304, 310, 320, 326, 380, 496, 512, 589, 608, 620, 640, 652, 760, 815, 992, 1024, 1178, 1216, 1240, 1280, 1304, 1520, 1630, 1984, 2356, 2432, 2480, 2560, 2608, 2945, 3040, 3097, 3260, 3968, 4712, 4864, 4960, 5053, 5120, 5216, 5890, 6080, 6194, 6520, 7936, 9424, 9728, 9920, 10106, 10432, 11780, 12160, 12388, 13040, 15485, 15872, 18848, 19456, 19840, 20212, 20864, 23560, 24320, 24776, 25265, 26080, 30970, 31744, 37696, 39680, 40424, 41728, 47120, 48640, 49552, 50530, 52160, 61940, 75392, 79360, 80848, 83456, 94240, 96007, 97280, 99104, 101060, 104320, 123880, 150784, 158720, 161696, 166912, 188480, 192014, 198208, 202120, 208640, 247760, 301568, 323392, 376960, 384028, 396416, 404240, 417280, 480035, 495520, 603136, 646784, 753920, 768056, 792832, 808480, 834560, 960070, 991040, 1293568, 1507840, 1536112, 1585664, 1616960, 1920140, 1982080, 2587136, 3015680, 3072224, 3171328, 3233920, 3840280, 3964160, 5174272, 6144448, 6467840, 7680560, 7928320, 12288896, 12935680, 15361120, 15856640, 24577792, 25871360, 30722240, 49155584, 61444480, 98311168, 122888960, 245777920, 491555840]

約数ペア:

[(1, 491555840), (2, 245777920), (4, 122888960), (5, 98311168), (8, 61444480), (10, 49155584), (16, 30722240), (19, 25871360), (20, 24577792), (31, 15856640), (32, 15361120), (38, 12935680), (40, 12288896), (62, 7928320), (64, 7680560), (76, 6467840), (80, 6144448), (95, 5174272), (124, 3964160), (128, 3840280), (152, 3233920), (155, 3171328), (160, 3072224), (163, 3015680), (190, 2587136), (248, 1982080), (256, 1920140), (304, 1616960), (310, 1585664), (320, 1536112), (326, 1507840), (380, 1293568), (496, 991040), (512, 960070), (589, 834560), (608, 808480), (620, 792832), (640, 768056), (652, 753920), (760, 646784), (815, 603136), (992, 495520), (1024, 480035), (1178, 417280), (1216, 404240), (1240, 396416), (1280, 384028), (1304, 376960), (1520, 323392), (1630, 301568), (1984, 247760), (2356, 208640), (2432, 202120), (2480, 198208), (2560, 192014), (2608, 188480), (2945, 166912), (3040, 161696), (3097, 158720), (3260, 150784), (3968, 123880), (4712, 104320), (4864, 101060), (4960, 99104), (5053, 97280), (5120, 96007), (5216, 94240), (5890, 83456), (6080, 80848), (6194, 79360), (6520, 75392), (7936, 61940), (9424, 52160), (9728, 50530), (9920, 49552), (10106, 48640), (10432, 47120), (11780, 41728), (12160, 40424), (12388, 39680), (13040, 37696), (15485, 31744), (15872, 30970), (18848, 26080), (19456, 25265), (19840, 24776), (20212, 24320), (20864, 23560)]