90900680

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{5639}}^1$

素因数の和:5694

約数の個数: 64

約数和(自身を含む): 227404800

約数和(自身を除く): 136504120

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 52, 62, 65, 104, 124, 130, 155, 248, 260, 310, 403, 520, 620, 806, 1240, 1612, 2015, 3224, 4030, 5639, 8060, 11278, 16120, 22556, 28195, 45112, 56390, 73307, 112780, 146614, 174809, 225560, 293228, 349618, 366535, 586456, 699236, 733070, 874045, 1398472, 1466140, 1748090, 2272517, 2932280, 3496180, 4545034, 6992360, 9090068, 11362585, 18180136, 22725170, 45450340, 90900680]

約数ペア:

[(1, 90900680), (2, 45450340), (4, 22725170), (5, 18180136), (8, 11362585), (10, 9090068), (13, 6992360), (20, 4545034), (26, 3496180), (31, 2932280), (40, 2272517), (52, 1748090), (62, 1466140), (65, 1398472), (104, 874045), (124, 733070), (130, 699236), (155, 586456), (248, 366535), (260, 349618), (310, 293228), (403, 225560), (520, 174809), (620, 146614), (806, 112780), (1240, 73307), (1612, 56390), (2015, 45112), (3224, 28195), (4030, 22556), (5639, 16120), (8060, 11278)]