72231440

素因数分解:

$2^4\times 5^1\times {\mathrm{521}}^1\times {\mathrm{1733}}^1$

素因数の和:2267

約数の個数: 40

約数和(自身を含む): 168357528

約数和(自身を除く): 96126088

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 521, 1042, 1733, 2084, 2605, 3466, 4168, 5210, 6932, 8336, 8665, 10420, 13864, 17330, 20840, 27728, 34660, 41680, 69320, 138640, 902893, 1805786, 3611572, 4514465, 7223144, 9028930, 14446288, 18057860, 36115720, 72231440]

約数ペア:

[(1, 72231440), (2, 36115720), (4, 18057860), (5, 14446288), (8, 9028930), (10, 7223144), (16, 4514465), (20, 3611572), (40, 1805786), (80, 902893), (521, 138640), (1042, 69320), (1733, 41680), (2084, 34660), (2605, 27728), (3466, 20840), (4168, 17330), (5210, 13864), (6932, 10420), (8336, 8665)]