19545872

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{157}}^1\times {\mathrm{251}}^1$

素因数の和:447

約数の個数: 40

約数和(自身を含む): 39497472

約数和(自身を除く): 19951600

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 157, 248, 251, 314, 496, 502, 628, 1004, 1256, 2008, 2512, 4016, 4867, 7781, 9734, 15562, 19468, 31124, 38936, 39407, 62248, 77872, 78814, 124496, 157628, 315256, 630512, 1221617, 2443234, 4886468, 9772936, 19545872]

約数ペア:

[(1, 19545872), (2, 9772936), (4, 4886468), (8, 2443234), (16, 1221617), (31, 630512), (62, 315256), (124, 157628), (157, 124496), (248, 78814), (251, 77872), (314, 62248), (496, 39407), (502, 38936), (628, 31124), (1004, 19468), (1256, 15562), (2008, 9734), (2512, 7781), (4016, 4867)]