40778140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^2\times {\mathrm{71}}^1$

素因数の和:187

約数の個数: 72

約数和(自身を含む): 95552352

約数和(自身を除く): 54774212

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 47, 52, 65, 71, 94, 130, 142, 188, 235, 260, 284, 355, 470, 611, 710, 923, 940, 1222, 1420, 1846, 2209, 2444, 3055, 3337, 3692, 4418, 4615, 6110, 6674, 8836, 9230, 11045, 12220, 13348, 16685, 18460, 22090, 28717, 33370, 43381, 44180, 57434, 66740, 86762, 114868, 143585, 156839, 173524, 216905, 287170, 313678, 433810, 574340, 627356, 784195, 867620, 1568390, 2038907, 3136780, 4077814, 8155628, 10194535, 20389070, 40778140]

約数ペア:

[(1, 40778140), (2, 20389070), (4, 10194535), (5, 8155628), (10, 4077814), (13, 3136780), (20, 2038907), (26, 1568390), (47, 867620), (52, 784195), (65, 627356), (71, 574340), (94, 433810), (130, 313678), (142, 287170), (188, 216905), (235, 173524), (260, 156839), (284, 143585), (355, 114868), (470, 86762), (611, 66740), (710, 57434), (923, 44180), (940, 43381), (1222, 33370), (1420, 28717), (1846, 22090), (2209, 18460), (2444, 16685), (3055, 13348), (3337, 12220), (3692, 11045), (4418, 9230), (4615, 8836), (6110, 6674)]