31587920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{4339}}^1$

素因数の和:4372

約数の個数: 80

約数和(自身を含む): 90410880

約数和(自身を除く): 58822960

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 40, 52, 56, 65, 70, 80, 91, 104, 112, 130, 140, 182, 208, 260, 280, 364, 455, 520, 560, 728, 910, 1040, 1456, 1820, 3640, 4339, 7280, 8678, 17356, 21695, 30373, 34712, 43390, 56407, 60746, 69424, 86780, 112814, 121492, 151865, 173560, 225628, 242984, 282035, 303730, 347120, 394849, 451256, 485968, 564070, 607460, 789698, 902512, 1128140, 1214920, 1579396, 1974245, 2256280, 2429840, 3158792, 3948490, 4512560, 6317584, 7896980, 15793960, 31587920]

約数ペア:

[(1, 31587920), (2, 15793960), (4, 7896980), (5, 6317584), (7, 4512560), (8, 3948490), (10, 3158792), (13, 2429840), (14, 2256280), (16, 1974245), (20, 1579396), (26, 1214920), (28, 1128140), (35, 902512), (40, 789698), (52, 607460), (56, 564070), (65, 485968), (70, 451256), (80, 394849), (91, 347120), (104, 303730), (112, 282035), (130, 242984), (140, 225628), (182, 173560), (208, 151865), (260, 121492), (280, 112814), (364, 86780), (455, 69424), (520, 60746), (560, 56407), (728, 43390), (910, 34712), (1040, 30373), (1456, 21695), (1820, 17356), (3640, 8678), (4339, 7280)]