20178487740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{659}}^1\times {\mathrm{510331}}^1$

素因数の和:511002

約数の個数: 48

約数和(自身を含む): 56585612160

約数和(自身を除く): 36407124420

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 659, 1318, 1977, 2636, 3295, 3954, 6590, 7908, 9885, 13180, 19770, 39540, 510331, 1020662, 1530993, 2041324, 2551655, 3061986, 5103310, 6123972, 7654965, 10206620, 15309930, 30619860, 336308129, 672616258, 1008924387, 1345232516, 1681540645, 2017848774, 3363081290, 4035697548, 5044621935, 6726162580, 10089243870, 20178487740]

約数ペア:

[(1, 20178487740), (2, 10089243870), (3, 6726162580), (4, 5044621935), (5, 4035697548), (6, 3363081290), (10, 2017848774), (12, 1681540645), (15, 1345232516), (20, 1008924387), (30, 672616258), (60, 336308129), (659, 30619860), (1318, 15309930), (1977, 10206620), (2636, 7654965), (3295, 6123972), (3954, 5103310), (6590, 3061986), (7908, 2551655), (9885, 2041324), (13180, 1530993), (19770, 1020662), (39540, 510331)]