655380

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{331}}^1$

素因数の和:357

約数の個数: 72

約数和(自身を含む): 2175264

約数和(自身を除く): 1519884

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220, 330, 331, 396, 495, 660, 662, 990, 993, 1324, 1655, 1980, 1986, 2979, 3310, 3641, 3972, 4965, 5958, 6620, 7282, 9930, 10923, 11916, 14564, 14895, 18205, 19860, 21846, 29790, 32769, 36410, 43692, 54615, 59580, 65538, 72820, 109230, 131076, 163845, 218460, 327690, 655380]

約数ペア:

[(1, 655380), (2, 327690), (3, 218460), (4, 163845), (5, 131076), (6, 109230), (9, 72820), (10, 65538), (11, 59580), (12, 54615), (15, 43692), (18, 36410), (20, 32769), (22, 29790), (30, 21846), (33, 19860), (36, 18205), (44, 14895), (45, 14564), (55, 11916), (60, 10923), (66, 9930), (90, 7282), (99, 6620), (110, 5958), (132, 4965), (165, 3972), (180, 3641), (198, 3310), (220, 2979), (330, 1986), (331, 1980), (396, 1655), (495, 1324), (660, 993), (662, 990)]