388192980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{924269}}^1$

素因数の和:924288

約数の個数: 48

約数和(自身を含む): 1242218880

約数和(自身を除く): 854025900

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 924269, 1848538, 2772807, 3697076, 4621345, 5545614, 6469883, 9242690, 11091228, 12939766, 13864035, 18485380, 19409649, 25879532, 27728070, 32349415, 38819298, 55456140, 64698830, 77638596, 97048245, 129397660, 194096490, 388192980]

約数ペア:

[(1, 388192980), (2, 194096490), (3, 129397660), (4, 97048245), (5, 77638596), (6, 64698830), (7, 55456140), (10, 38819298), (12, 32349415), (14, 27728070), (15, 25879532), (20, 19409649), (21, 18485380), (28, 13864035), (30, 12939766), (35, 11091228), (42, 9242690), (60, 6469883), (70, 5545614), (84, 4621345), (105, 3697076), (140, 2772807), (210, 1848538), (420, 924269)]