15981836

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{179}}^1$

素因数の和:314

約数の個数: 48

約数和(自身を含む): 32387040

約数和(自身を除く): 16405204

約数列:

[1, 2, 4, 13, 17, 26, 34, 52, 68, 101, 179, 202, 221, 358, 404, 442, 716, 884, 1313, 1717, 2327, 2626, 3043, 3434, 4654, 5252, 6086, 6868, 9308, 12172, 18079, 22321, 36158, 39559, 44642, 72316, 79118, 89284, 158236, 235027, 307343, 470054, 614686, 940108, 1229372, 3995459, 7990918, 15981836]

約数ペア:

[(1, 15981836), (2, 7990918), (4, 3995459), (13, 1229372), (17, 940108), (26, 614686), (34, 470054), (52, 307343), (68, 235027), (101, 158236), (179, 89284), (202, 79118), (221, 72316), (358, 44642), (404, 39559), (442, 36158), (716, 22321), (884, 18079), (1313, 12172), (1717, 9308), (2327, 6868), (2626, 6086), (3043, 5252), (3434, 4654)]