754647640

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{6481}}^1$

素因数の和:6604

約数の個数: 64

約数和(自身を含む): 1764141120

約数和(自身を除く): 1009493480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 71, 82, 142, 164, 205, 284, 328, 355, 410, 568, 710, 820, 1420, 1640, 2840, 2911, 5822, 6481, 11644, 12962, 14555, 23288, 25924, 29110, 32405, 51848, 58220, 64810, 116440, 129620, 259240, 265721, 460151, 531442, 920302, 1062884, 1328605, 1840604, 2125768, 2300755, 2657210, 3681208, 4601510, 5314420, 9203020, 10628840, 18406040, 18866191, 37732382, 75464764, 94330955, 150929528, 188661910, 377323820, 754647640]

約数ペア:

[(1, 754647640), (2, 377323820), (4, 188661910), (5, 150929528), (8, 94330955), (10, 75464764), (20, 37732382), (40, 18866191), (41, 18406040), (71, 10628840), (82, 9203020), (142, 5314420), (164, 4601510), (205, 3681208), (284, 2657210), (328, 2300755), (355, 2125768), (410, 1840604), (568, 1328605), (710, 1062884), (820, 920302), (1420, 531442), (1640, 460151), (2840, 265721), (2911, 259240), (5822, 129620), (6481, 116440), (11644, 64810), (12962, 58220), (14555, 51848), (23288, 32405), (25924, 29110)]