20716928

素因数分解:

$2^7\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{227}}^1$

素因数の和:295

約数の個数: 64

約数和(自身を含む): 44651520

約数和(自身を除く): 23934592

約数列:

[1, 2, 4, 8, 16, 23, 31, 32, 46, 62, 64, 92, 124, 128, 184, 227, 248, 368, 454, 496, 713, 736, 908, 992, 1426, 1472, 1816, 1984, 2852, 2944, 3632, 3968, 5221, 5704, 7037, 7264, 10442, 11408, 14074, 14528, 20884, 22816, 28148, 29056, 41768, 45632, 56296, 83536, 91264, 112592, 161851, 167072, 225184, 323702, 334144, 450368, 647404, 668288, 900736, 1294808, 2589616, 5179232, 10358464, 20716928]

約数ペア:

[(1, 20716928), (2, 10358464), (4, 5179232), (8, 2589616), (16, 1294808), (23, 900736), (31, 668288), (32, 647404), (46, 450368), (62, 334144), (64, 323702), (92, 225184), (124, 167072), (128, 161851), (184, 112592), (227, 91264), (248, 83536), (368, 56296), (454, 45632), (496, 41768), (713, 29056), (736, 28148), (908, 22816), (992, 20884), (1426, 14528), (1472, 14074), (1816, 11408), (1984, 10442), (2852, 7264), (2944, 7037), (3632, 5704), (3968, 5221)]