643872688

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{2367179}}^1$

素因数の和:2367204

約数の個数: 20

約数和(自身を含む): 1320886440

約数和(自身を除く): 677013752

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 2367179, 4734358, 9468716, 18937432, 37874864, 40242043, 80484086, 160968172, 321936344, 643872688]

約数ペア:

[(1, 643872688), (2, 321936344), (4, 160968172), (8, 80484086), (16, 40242043), (17, 37874864), (34, 18937432), (68, 9468716), (136, 4734358), (272, 2367179)]