20728563648

素因数分解:

$2^6\times 3^1\times {\mathrm{13}}^1\times {\mathrm{8304713}}^1$

素因数の和:8304741

約数の個数: 56

約数和(自身を含む): 59063125968

約数和(自身を除く): 38334562320

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 32, 39, 48, 52, 64, 78, 96, 104, 156, 192, 208, 312, 416, 624, 832, 1248, 2496, 8304713, 16609426, 24914139, 33218852, 49828278, 66437704, 99656556, 107961269, 132875408, 199313112, 215922538, 265750816, 323883807, 398626224, 431845076, 531501632, 647767614, 797252448, 863690152, 1295535228, 1594504896, 1727380304, 2591070456, 3454760608, 5182140912, 6909521216, 10364281824, 20728563648]

約数ペア:

[(1, 20728563648), (2, 10364281824), (3, 6909521216), (4, 5182140912), (6, 3454760608), (8, 2591070456), (12, 1727380304), (13, 1594504896), (16, 1295535228), (24, 863690152), (26, 797252448), (32, 647767614), (39, 531501632), (48, 431845076), (52, 398626224), (64, 323883807), (78, 265750816), (96, 215922538), (104, 199313112), (156, 132875408), (192, 107961269), (208, 99656556), (312, 66437704), (416, 49828278), (624, 33218852), (832, 24914139), (1248, 16609426), (2496, 8304713)]