1209847340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{263}}^1\times {\mathrm{1361}}^1$

素因数の和:1659

約数の個数: 72

約数和(自身を含む): 2763639648

約数和(自身を除く): 1553792308

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 263, 338, 526, 676, 845, 1052, 1315, 1361, 1690, 2630, 2722, 3380, 3419, 5260, 5444, 6805, 6838, 13610, 13676, 17095, 17693, 27220, 34190, 35386, 44447, 68380, 70772, 88465, 88894, 176930, 177788, 222235, 230009, 353860, 357943, 444470, 460018, 715886, 888940, 920036, 1150045, 1431772, 1789715, 2300090, 3579430, 4600180, 4653259, 7158860, 9306518, 18613036, 23266295, 46532590, 60492367, 93065180, 120984734, 241969468, 302461835, 604923670, 1209847340]

約数ペア:

[(1, 1209847340), (2, 604923670), (4, 302461835), (5, 241969468), (10, 120984734), (13, 93065180), (20, 60492367), (26, 46532590), (52, 23266295), (65, 18613036), (130, 9306518), (169, 7158860), (260, 4653259), (263, 4600180), (338, 3579430), (526, 2300090), (676, 1789715), (845, 1431772), (1052, 1150045), (1315, 920036), (1361, 888940), (1690, 715886), (2630, 460018), (2722, 444470), (3380, 357943), (3419, 353860), (5260, 230009), (5444, 222235), (6805, 177788), (6838, 176930), (13610, 88894), (13676, 88465), (17095, 70772), (17693, 68380), (27220, 44447), (34190, 35386)]