56173240

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{509}}^1$

素因数の和:640

約数の個数: 64

約数和(自身を含む): 132192000

約数和(自身を除く): 76018760

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 89, 124, 155, 178, 248, 310, 356, 445, 509, 620, 712, 890, 1018, 1240, 1780, 2036, 2545, 2759, 3560, 4072, 5090, 5518, 10180, 11036, 13795, 15779, 20360, 22072, 27590, 31558, 45301, 55180, 63116, 78895, 90602, 110360, 126232, 157790, 181204, 226505, 315580, 362408, 453010, 631160, 906020, 1404331, 1812040, 2808662, 5617324, 7021655, 11234648, 14043310, 28086620, 56173240]

約数ペア:

[(1, 56173240), (2, 28086620), (4, 14043310), (5, 11234648), (8, 7021655), (10, 5617324), (20, 2808662), (31, 1812040), (40, 1404331), (62, 906020), (89, 631160), (124, 453010), (155, 362408), (178, 315580), (248, 226505), (310, 181204), (356, 157790), (445, 126232), (509, 110360), (620, 90602), (712, 78895), (890, 63116), (1018, 55180), (1240, 45301), (1780, 31558), (2036, 27590), (2545, 22072), (2759, 20360), (3560, 15779), (4072, 13795), (5090, 11036), (5518, 10180)]