90413320

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{109}}^1\times {\mathrm{233}}^1$

素因数の和:442

約数の個数: 64

約数和(自身を含む): 208494000

約数和(自身を除く): 118080680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 109, 178, 218, 233, 356, 436, 445, 466, 545, 712, 872, 890, 932, 1090, 1165, 1780, 1864, 2180, 2330, 3560, 4360, 4660, 9320, 9701, 19402, 20737, 25397, 38804, 41474, 48505, 50794, 77608, 82948, 97010, 101588, 103685, 126985, 165896, 194020, 203176, 207370, 253970, 388040, 414740, 507940, 829480, 1015880, 2260333, 4520666, 9041332, 11301665, 18082664, 22603330, 45206660, 90413320]

約数ペア:

[(1, 90413320), (2, 45206660), (4, 22603330), (5, 18082664), (8, 11301665), (10, 9041332), (20, 4520666), (40, 2260333), (89, 1015880), (109, 829480), (178, 507940), (218, 414740), (233, 388040), (356, 253970), (436, 207370), (445, 203176), (466, 194020), (545, 165896), (712, 126985), (872, 103685), (890, 101588), (932, 97010), (1090, 82948), (1165, 77608), (1780, 50794), (1864, 48505), (2180, 41474), (2330, 38804), (3560, 25397), (4360, 20737), (4660, 19402), (9320, 9701)]