321945960

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{487}}^1\times {\mathrm{787}}^1$

素因数の和:1295

約数の個数: 128

約数和(自身を含む): 1107486720

約数和(自身を除く): 785540760

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 487, 787, 840, 974, 1461, 1574, 1948, 2361, 2435, 2922, 3148, 3409, 3896, 3935, 4722, 4870, 5509, 5844, 6296, 6818, 7305, 7870, 9444, 9740, 10227, 11018, 11688, 11805, 13636, 14610, 15740, 16527, 17045, 18888, 19480, 20454, 22036, 23610, 27272, 27545, 29220, 31480, 33054, 34090, 40908, 44072, 47220, 51135, 55090, 58440, 66108, 68180, 81816, 82635, 94440, 102270, 110180, 132216, 136360, 165270, 204540, 220360, 330540, 383269, 409080, 661080, 766538, 1149807, 1533076, 1916345, 2299614, 2682883, 3066152, 3832690, 4599228, 5365766, 5749035, 7665380, 8048649, 9198456, 10731532, 11498070, 13414415, 15330760, 16097298, 21463064, 22996140, 26828830, 32194596, 40243245, 45992280, 53657660, 64389192, 80486490, 107315320, 160972980, 321945960]

約数ペア:

[(1, 321945960), (2, 160972980), (3, 107315320), (4, 80486490), (5, 64389192), (6, 53657660), (7, 45992280), (8, 40243245), (10, 32194596), (12, 26828830), (14, 22996140), (15, 21463064), (20, 16097298), (21, 15330760), (24, 13414415), (28, 11498070), (30, 10731532), (35, 9198456), (40, 8048649), (42, 7665380), (56, 5749035), (60, 5365766), (70, 4599228), (84, 3832690), (105, 3066152), (120, 2682883), (140, 2299614), (168, 1916345), (210, 1533076), (280, 1149807), (420, 766538), (487, 661080), (787, 409080), (840, 383269), (974, 330540), (1461, 220360), (1574, 204540), (1948, 165270), (2361, 136360), (2435, 132216), (2922, 110180), (3148, 102270), (3409, 94440), (3896, 82635), (3935, 81816), (4722, 68180), (4870, 66108), (5509, 58440), (5844, 55090), (6296, 51135), (6818, 47220), (7305, 44072), (7870, 40908), (9444, 34090), (9740, 33054), (10227, 31480), (11018, 29220), (11688, 27545), (11805, 27272), (13636, 23610), (14610, 22036), (15740, 20454), (16527, 19480), (17045, 18888)]