18663488

素因数分解:

$2^6\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{409}}^1$

素因数の和:475

約数の個数: 56

約数和(自身を含む): 39989760

約数和(自身を除く): 21326272

約数列:

[1, 2, 4, 8, 16, 23, 31, 32, 46, 62, 64, 92, 124, 184, 248, 368, 409, 496, 713, 736, 818, 992, 1426, 1472, 1636, 1984, 2852, 3272, 5704, 6544, 9407, 11408, 12679, 13088, 18814, 22816, 25358, 26176, 37628, 45632, 50716, 75256, 101432, 150512, 202864, 291617, 301024, 405728, 583234, 602048, 811456, 1166468, 2332936, 4665872, 9331744, 18663488]

約数ペア:

[(1, 18663488), (2, 9331744), (4, 4665872), (8, 2332936), (16, 1166468), (23, 811456), (31, 602048), (32, 583234), (46, 405728), (62, 301024), (64, 291617), (92, 202864), (124, 150512), (184, 101432), (248, 75256), (368, 50716), (409, 45632), (496, 37628), (713, 26176), (736, 25358), (818, 22816), (992, 18814), (1426, 13088), (1472, 12679), (1636, 11408), (1984, 9407), (2852, 6544), (3272, 5704)]