168698180

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{79}}^1\times {\mathrm{2179}}^1$

素因数の和:2281

約数の個数: 72

約数和(自身を含む): 417513600

約数和(自身を除く): 248815420

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 79, 98, 140, 158, 196, 245, 316, 395, 490, 553, 790, 980, 1106, 1580, 2179, 2212, 2765, 3871, 4358, 5530, 7742, 8716, 10895, 11060, 15253, 15484, 19355, 21790, 30506, 38710, 43580, 61012, 76265, 77420, 106771, 152530, 172141, 213542, 305060, 344282, 427084, 533855, 688564, 860705, 1067710, 1204987, 1721410, 2135420, 2409974, 3442820, 4819948, 6024935, 8434909, 12049870, 16869818, 24099740, 33739636, 42174545, 84349090, 168698180]

約数ペア:

[(1, 168698180), (2, 84349090), (4, 42174545), (5, 33739636), (7, 24099740), (10, 16869818), (14, 12049870), (20, 8434909), (28, 6024935), (35, 4819948), (49, 3442820), (70, 2409974), (79, 2135420), (98, 1721410), (140, 1204987), (158, 1067710), (196, 860705), (245, 688564), (316, 533855), (395, 427084), (490, 344282), (553, 305060), (790, 213542), (980, 172141), (1106, 152530), (1580, 106771), (2179, 77420), (2212, 76265), (2765, 61012), (3871, 43580), (4358, 38710), (5530, 30506), (7742, 21790), (8716, 19355), (10895, 15484), (11060, 15253)]