20637568

素因数分解:

$2^7\times 7^1\times {\mathrm{31}}^1\times {\mathrm{743}}^1$

素因数の和:795

約数の個数: 64

約数和(自身を含む): 48568320

約数和(自身を除く): 27930752

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 32, 56, 62, 64, 112, 124, 128, 217, 224, 248, 434, 448, 496, 743, 868, 896, 992, 1486, 1736, 1984, 2972, 3472, 3968, 5201, 5944, 6944, 10402, 11888, 13888, 20804, 23033, 23776, 27776, 41608, 46066, 47552, 83216, 92132, 95104, 161231, 166432, 184264, 322462, 332864, 368528, 644924, 665728, 737056, 1289848, 1474112, 2579696, 2948224, 5159392, 10318784, 20637568]

約数ペア:

[(1, 20637568), (2, 10318784), (4, 5159392), (7, 2948224), (8, 2579696), (14, 1474112), (16, 1289848), (28, 737056), (31, 665728), (32, 644924), (56, 368528), (62, 332864), (64, 322462), (112, 184264), (124, 166432), (128, 161231), (217, 95104), (224, 92132), (248, 83216), (434, 47552), (448, 46066), (496, 41608), (743, 27776), (868, 23776), (896, 23033), (992, 20804), (1486, 13888), (1736, 11888), (1984, 10402), (2972, 6944), (3472, 5944), (3968, 5201)]