89712760

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{1019}}^1$

素因数の和:1132

約数の個数: 64

約数和(自身を含む): 211507200

約数和(自身を除く): 121794440

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 71, 124, 142, 155, 248, 284, 310, 355, 568, 620, 710, 1019, 1240, 1420, 2038, 2201, 2840, 4076, 4402, 5095, 8152, 8804, 10190, 11005, 17608, 20380, 22010, 31589, 40760, 44020, 63178, 72349, 88040, 126356, 144698, 157945, 252712, 289396, 315890, 361745, 578792, 631780, 723490, 1263560, 1446980, 2242819, 2893960, 4485638, 8971276, 11214095, 17942552, 22428190, 44856380, 89712760]

約数ペア:

[(1, 89712760), (2, 44856380), (4, 22428190), (5, 17942552), (8, 11214095), (10, 8971276), (20, 4485638), (31, 2893960), (40, 2242819), (62, 1446980), (71, 1263560), (124, 723490), (142, 631780), (155, 578792), (248, 361745), (284, 315890), (310, 289396), (355, 252712), (568, 157945), (620, 144698), (710, 126356), (1019, 88040), (1240, 72349), (1420, 63178), (2038, 44020), (2201, 40760), (2840, 31589), (4076, 22010), (4402, 20380), (5095, 17608), (8152, 11005), (8804, 10190)]