18902720

素因数分解:

$2^6\times 5^1\times {\mathrm{19}}^1\times {\mathrm{3109}}^1$

素因数の和:3145

約数の個数: 56

約数和(自身を含む): 47396400

約数和(自身を除く): 28493680

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 152, 160, 190, 304, 320, 380, 608, 760, 1216, 1520, 3040, 3109, 6080, 6218, 12436, 15545, 24872, 31090, 49744, 59071, 62180, 99488, 118142, 124360, 198976, 236284, 248720, 295355, 472568, 497440, 590710, 945136, 994880, 1181420, 1890272, 2362840, 3780544, 4725680, 9451360, 18902720]

約数ペア:

[(1, 18902720), (2, 9451360), (4, 4725680), (5, 3780544), (8, 2362840), (10, 1890272), (16, 1181420), (19, 994880), (20, 945136), (32, 590710), (38, 497440), (40, 472568), (64, 295355), (76, 248720), (80, 236284), (95, 198976), (152, 124360), (160, 118142), (190, 99488), (304, 62180), (320, 59071), (380, 49744), (608, 31090), (760, 24872), (1216, 15545), (1520, 12436), (3040, 6218), (3109, 6080)]