644756416

素因数分解:

$2^6\times {\mathrm{17}}^1\times {\mathrm{269}}^1\times {\mathrm{2203}}^1$

素因数の和:2501

約数の個数: 56

約数和(自身を含む): 1360352880

約数和(自身を除く): 715596464

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 64, 68, 136, 269, 272, 538, 544, 1076, 1088, 2152, 2203, 4304, 4406, 4573, 8608, 8812, 9146, 17216, 17624, 18292, 35248, 36584, 37451, 70496, 73168, 74902, 140992, 146336, 149804, 292672, 299608, 592607, 599216, 1185214, 1198432, 2370428, 2396864, 4740856, 9481712, 10074319, 18963424, 20148638, 37926848, 40297276, 80594552, 161189104, 322378208, 644756416]

約数ペア:

[(1, 644756416), (2, 322378208), (4, 161189104), (8, 80594552), (16, 40297276), (17, 37926848), (32, 20148638), (34, 18963424), (64, 10074319), (68, 9481712), (136, 4740856), (269, 2396864), (272, 2370428), (538, 1198432), (544, 1185214), (1076, 599216), (1088, 592607), (2152, 299608), (2203, 292672), (4304, 149804), (4406, 146336), (4573, 140992), (8608, 74902), (8812, 73168), (9146, 70496), (17216, 37451), (17624, 36584), (18292, 35248)]