640419376

素因数分解:

$2^4\times {\mathrm{17}}^3\times {\mathrm{8147}}^1$

素因数の和:8206

約数の個数: 40

約数和(自身を含む): 1318509360

約数和(自身を除く): 678089984

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 289, 578, 1156, 2312, 4624, 4913, 8147, 9826, 16294, 19652, 32588, 39304, 65176, 78608, 130352, 138499, 276998, 553996, 1107992, 2215984, 2354483, 4708966, 9417932, 18835864, 37671728, 40026211, 80052422, 160104844, 320209688, 640419376]

約数ペア:

[(1, 640419376), (2, 320209688), (4, 160104844), (8, 80052422), (16, 40026211), (17, 37671728), (34, 18835864), (68, 9417932), (136, 4708966), (272, 2354483), (289, 2215984), (578, 1107992), (1156, 553996), (2312, 276998), (4624, 138499), (4913, 130352), (8147, 78608), (9826, 65176), (16294, 39304), (19652, 32588)]