20869320

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{2851}}^1$

素因数の和:2926

約数の個数: 64

約数和(自身を含む): 63656640

約数和(自身を除く): 42787320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 61, 120, 122, 183, 244, 305, 366, 488, 610, 732, 915, 1220, 1464, 1830, 2440, 2851, 3660, 5702, 7320, 8553, 11404, 14255, 17106, 22808, 28510, 34212, 42765, 57020, 68424, 85530, 114040, 171060, 173911, 342120, 347822, 521733, 695644, 869555, 1043466, 1391288, 1739110, 2086932, 2608665, 3478220, 4173864, 5217330, 6956440, 10434660, 20869320]

約数ペア:

[(1, 20869320), (2, 10434660), (3, 6956440), (4, 5217330), (5, 4173864), (6, 3478220), (8, 2608665), (10, 2086932), (12, 1739110), (15, 1391288), (20, 1043466), (24, 869555), (30, 695644), (40, 521733), (60, 347822), (61, 342120), (120, 173911), (122, 171060), (183, 114040), (244, 85530), (305, 68424), (366, 57020), (488, 42765), (610, 34212), (732, 28510), (915, 22808), (1220, 17106), (1464, 14255), (1830, 11404), (2440, 8553), (2851, 7320), (3660, 5702)]