261327720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{211}}^1\times {\mathrm{10321}}^1$

素因数の和:10546

約数の個数: 64

約数和(自身を含む): 787775040

約数和(自身を除く): 526447320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 211, 422, 633, 844, 1055, 1266, 1688, 2110, 2532, 3165, 4220, 5064, 6330, 8440, 10321, 12660, 20642, 25320, 30963, 41284, 51605, 61926, 82568, 103210, 123852, 154815, 206420, 247704, 309630, 412840, 619260, 1238520, 2177731, 4355462, 6533193, 8710924, 10888655, 13066386, 17421848, 21777310, 26132772, 32665965, 43554620, 52265544, 65331930, 87109240, 130663860, 261327720]

約数ペア:

[(1, 261327720), (2, 130663860), (3, 87109240), (4, 65331930), (5, 52265544), (6, 43554620), (8, 32665965), (10, 26132772), (12, 21777310), (15, 17421848), (20, 13066386), (24, 10888655), (30, 8710924), (40, 6533193), (60, 4355462), (120, 2177731), (211, 1238520), (422, 619260), (633, 412840), (844, 309630), (1055, 247704), (1266, 206420), (1688, 154815), (2110, 123852), (2532, 103210), (3165, 82568), (4220, 61926), (5064, 51605), (6330, 41284), (8440, 30963), (10321, 25320), (12660, 20642)]