218630360

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{433}}^1\times {\mathrm{971}}^1$

素因数の和:1428

約数の個数: 64

約数和(自身を含む): 531528480

約数和(自身を除く): 312898120

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 433, 520, 866, 971, 1732, 1942, 2165, 3464, 3884, 4330, 4855, 5629, 7768, 8660, 9710, 11258, 12623, 17320, 19420, 22516, 25246, 28145, 38840, 45032, 50492, 56290, 63115, 100984, 112580, 126230, 225160, 252460, 420443, 504920, 840886, 1681772, 2102215, 3363544, 4204430, 5465759, 8408860, 10931518, 16817720, 21863036, 27328795, 43726072, 54657590, 109315180, 218630360]

約数ペア:

[(1, 218630360), (2, 109315180), (4, 54657590), (5, 43726072), (8, 27328795), (10, 21863036), (13, 16817720), (20, 10931518), (26, 8408860), (40, 5465759), (52, 4204430), (65, 3363544), (104, 2102215), (130, 1681772), (260, 840886), (433, 504920), (520, 420443), (866, 252460), (971, 225160), (1732, 126230), (1942, 112580), (2165, 100984), (3464, 63115), (3884, 56290), (4330, 50492), (4855, 45032), (5629, 38840), (7768, 28145), (8660, 25246), (9710, 22516), (11258, 19420), (12623, 17320)]