31275960

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{263}}^1\times {\mathrm{991}}^1$

素因数の和:1268

約数の個数: 64

約数和(自身を含む): 94279680

約数和(自身を除く): 63003720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 263, 526, 789, 991, 1052, 1315, 1578, 1982, 2104, 2630, 2973, 3156, 3945, 3964, 4955, 5260, 5946, 6312, 7890, 7928, 9910, 10520, 11892, 14865, 15780, 19820, 23784, 29730, 31560, 39640, 59460, 118920, 260633, 521266, 781899, 1042532, 1303165, 1563798, 2085064, 2606330, 3127596, 3909495, 5212660, 6255192, 7818990, 10425320, 15637980, 31275960]

約数ペア:

[(1, 31275960), (2, 15637980), (3, 10425320), (4, 7818990), (5, 6255192), (6, 5212660), (8, 3909495), (10, 3127596), (12, 2606330), (15, 2085064), (20, 1563798), (24, 1303165), (30, 1042532), (40, 781899), (60, 521266), (120, 260633), (263, 118920), (526, 59460), (789, 39640), (991, 31560), (1052, 29730), (1315, 23784), (1578, 19820), (1982, 15780), (2104, 14865), (2630, 11892), (2973, 10520), (3156, 9910), (3945, 7928), (3964, 7890), (4955, 6312), (5260, 5946)]