488401280

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{239}}^1$

素因数の和:392

約数の個数: 128

約数和(自身を含む): 1222041600

約数和(自身を除く): 733640320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 103, 124, 128, 155, 160, 206, 239, 248, 310, 320, 412, 478, 496, 515, 620, 640, 824, 956, 992, 1030, 1195, 1240, 1648, 1912, 1984, 2060, 2390, 2480, 3193, 3296, 3824, 3968, 4120, 4780, 4960, 6386, 6592, 7409, 7648, 8240, 9560, 9920, 12772, 13184, 14818, 15296, 15965, 16480, 19120, 19840, 24617, 25544, 29636, 30592, 31930, 32960, 37045, 38240, 49234, 51088, 59272, 63860, 65920, 74090, 76480, 98468, 102176, 118544, 123085, 127720, 148180, 152960, 196936, 204352, 237088, 246170, 255440, 296360, 393872, 408704, 474176, 492340, 510880, 592720, 763127, 787744, 948352, 984680, 1021760, 1185440, 1526254, 1575488, 1969360, 2043520, 2370880, 3052508, 3150976, 3815635, 3938720, 4741760, 6105016, 7631270, 7877440, 12210032, 15262540, 15754880, 24420064, 30525080, 48840128, 61050160, 97680256, 122100320, 244200640, 488401280]

約数ペア:

[(1, 488401280), (2, 244200640), (4, 122100320), (5, 97680256), (8, 61050160), (10, 48840128), (16, 30525080), (20, 24420064), (31, 15754880), (32, 15262540), (40, 12210032), (62, 7877440), (64, 7631270), (80, 6105016), (103, 4741760), (124, 3938720), (128, 3815635), (155, 3150976), (160, 3052508), (206, 2370880), (239, 2043520), (248, 1969360), (310, 1575488), (320, 1526254), (412, 1185440), (478, 1021760), (496, 984680), (515, 948352), (620, 787744), (640, 763127), (824, 592720), (956, 510880), (992, 492340), (1030, 474176), (1195, 408704), (1240, 393872), (1648, 296360), (1912, 255440), (1984, 246170), (2060, 237088), (2390, 204352), (2480, 196936), (3193, 152960), (3296, 148180), (3824, 127720), (3968, 123085), (4120, 118544), (4780, 102176), (4960, 98468), (6386, 76480), (6592, 74090), (7409, 65920), (7648, 63860), (8240, 59272), (9560, 51088), (9920, 49234), (12772, 38240), (13184, 37045), (14818, 32960), (15296, 31930), (15965, 30592), (16480, 29636), (19120, 25544), (19840, 24617)]