668129360

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{4021}}^1$

素因数の和:4132

約数の個数: 80

約数和(自身を含む): 1627848192

約数和(自身を除く): 959718832

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 67, 80, 124, 134, 155, 248, 268, 310, 335, 496, 536, 620, 670, 1072, 1240, 1340, 2077, 2480, 2680, 4021, 4154, 5360, 8042, 8308, 10385, 16084, 16616, 20105, 20770, 32168, 33232, 40210, 41540, 64336, 80420, 83080, 124651, 160840, 166160, 249302, 269407, 321680, 498604, 538814, 623255, 997208, 1077628, 1246510, 1347035, 1994416, 2155256, 2493020, 2694070, 4310512, 4986040, 5388140, 8351617, 9972080, 10776280, 16703234, 21552560, 33406468, 41758085, 66812936, 83516170, 133625872, 167032340, 334064680, 668129360]

約数ペア:

[(1, 668129360), (2, 334064680), (4, 167032340), (5, 133625872), (8, 83516170), (10, 66812936), (16, 41758085), (20, 33406468), (31, 21552560), (40, 16703234), (62, 10776280), (67, 9972080), (80, 8351617), (124, 5388140), (134, 4986040), (155, 4310512), (248, 2694070), (268, 2493020), (310, 2155256), (335, 1994416), (496, 1347035), (536, 1246510), (620, 1077628), (670, 997208), (1072, 623255), (1240, 538814), (1340, 498604), (2077, 321680), (2480, 269407), (2680, 249302), (4021, 166160), (4154, 160840), (5360, 124651), (8042, 83080), (8308, 80420), (10385, 64336), (16084, 41540), (16616, 40210), (20105, 33232), (20770, 32168)]