28982720

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{6967}}^1$

素因数の和:6997

約数の個数: 56

約数和(自身を含む): 74334624

約数和(自身を除く): 45351904

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 130, 160, 208, 260, 320, 416, 520, 832, 1040, 2080, 4160, 6967, 13934, 27868, 34835, 55736, 69670, 90571, 111472, 139340, 181142, 222944, 278680, 362284, 445888, 452855, 557360, 724568, 905710, 1114720, 1449136, 1811420, 2229440, 2898272, 3622840, 5796544, 7245680, 14491360, 28982720]

約数ペア:

[(1, 28982720), (2, 14491360), (4, 7245680), (5, 5796544), (8, 3622840), (10, 2898272), (13, 2229440), (16, 1811420), (20, 1449136), (26, 1114720), (32, 905710), (40, 724568), (52, 557360), (64, 452855), (65, 445888), (80, 362284), (104, 278680), (130, 222944), (160, 181142), (208, 139340), (260, 111472), (320, 90571), (416, 69670), (520, 55736), (832, 34835), (1040, 27868), (2080, 13934), (4160, 6967)]