31821960

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{821}}^1$

素因数の和:871

約数の個数: 128

約数和(自身を含む): 106531200

約数和(自身を除く): 74709240

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 19, 20, 24, 30, 34, 38, 40, 51, 57, 60, 68, 76, 85, 95, 102, 114, 120, 136, 152, 170, 190, 204, 228, 255, 285, 323, 340, 380, 408, 456, 510, 570, 646, 680, 760, 821, 969, 1020, 1140, 1292, 1615, 1642, 1938, 2040, 2280, 2463, 2584, 3230, 3284, 3876, 4105, 4845, 4926, 6460, 6568, 7752, 8210, 9690, 9852, 12315, 12920, 13957, 15599, 16420, 19380, 19704, 24630, 27914, 31198, 32840, 38760, 41871, 46797, 49260, 55828, 62396, 69785, 77995, 83742, 93594, 98520, 111656, 124792, 139570, 155990, 167484, 187188, 209355, 233985, 265183, 279140, 311980, 334968, 374376, 418710, 467970, 530366, 558280, 623960, 795549, 837420, 935940, 1060732, 1325915, 1591098, 1674840, 1871880, 2121464, 2651830, 3182196, 3977745, 5303660, 6364392, 7955490, 10607320, 15910980, 31821960]

約数ペア:

[(1, 31821960), (2, 15910980), (3, 10607320), (4, 7955490), (5, 6364392), (6, 5303660), (8, 3977745), (10, 3182196), (12, 2651830), (15, 2121464), (17, 1871880), (19, 1674840), (20, 1591098), (24, 1325915), (30, 1060732), (34, 935940), (38, 837420), (40, 795549), (51, 623960), (57, 558280), (60, 530366), (68, 467970), (76, 418710), (85, 374376), (95, 334968), (102, 311980), (114, 279140), (120, 265183), (136, 233985), (152, 209355), (170, 187188), (190, 167484), (204, 155990), (228, 139570), (255, 124792), (285, 111656), (323, 98520), (340, 93594), (380, 83742), (408, 77995), (456, 69785), (510, 62396), (570, 55828), (646, 49260), (680, 46797), (760, 41871), (821, 38760), (969, 32840), (1020, 31198), (1140, 27914), (1292, 24630), (1615, 19704), (1642, 19380), (1938, 16420), (2040, 15599), (2280, 13957), (2463, 12920), (2584, 12315), (3230, 9852), (3284, 9690), (3876, 8210), (4105, 7752), (4845, 6568), (4926, 6460)]