17769740

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{89}}^1\times {\mathrm{149}}^1$

素因数の和:314

約数の個数: 48

約数和(自身を含む): 38556000

約数和(自身を除く): 20786260

約数列:

[1, 2, 4, 5, 10, 20, 67, 89, 134, 149, 178, 268, 298, 335, 356, 445, 596, 670, 745, 890, 1340, 1490, 1780, 2980, 5963, 9983, 11926, 13261, 19966, 23852, 26522, 29815, 39932, 49915, 53044, 59630, 66305, 99830, 119260, 132610, 199660, 265220, 888487, 1776974, 3553948, 4442435, 8884870, 17769740]

約数ペア:

[(1, 17769740), (2, 8884870), (4, 4442435), (5, 3553948), (10, 1776974), (20, 888487), (67, 265220), (89, 199660), (134, 132610), (149, 119260), (178, 99830), (268, 66305), (298, 59630), (335, 53044), (356, 49915), (445, 39932), (596, 29815), (670, 26522), (745, 23852), (890, 19966), (1340, 13261), (1490, 11926), (1780, 9983), (2980, 5963)]