399798480

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{1665827}}^1$

素因数の和:1665843

約数の個数: 40

約数和(自身を含む): 1239376032

約数和(自身を除く): 839577552

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 1665827, 3331654, 4997481, 6663308, 8329135, 9994962, 13326616, 16658270, 19989924, 24987405, 26653232, 33316540, 39979848, 49974810, 66633080, 79959696, 99949620, 133266160, 199899240, 399798480]

約数ペア:

[(1, 399798480), (2, 199899240), (3, 133266160), (4, 99949620), (5, 79959696), (6, 66633080), (8, 49974810), (10, 39979848), (12, 33316540), (15, 26653232), (16, 24987405), (20, 19989924), (24, 16658270), (30, 13326616), (40, 9994962), (48, 8329135), (60, 6663308), (80, 4997481), (120, 3331654), (240, 1665827)]