72700420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{137}}^1\times {\mathrm{157}}^1$

素因数の和:329

約数の個数: 72

約数和(自身を含む): 167585544

約数和(自身を除く): 94885124

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 137, 157, 169, 260, 274, 314, 338, 548, 628, 676, 685, 785, 845, 1370, 1570, 1690, 1781, 2041, 2740, 3140, 3380, 3562, 4082, 7124, 8164, 8905, 10205, 17810, 20410, 21509, 23153, 26533, 35620, 40820, 43018, 46306, 53066, 86036, 92612, 106132, 107545, 115765, 132665, 215090, 231530, 265330, 279617, 430180, 463060, 530660, 559234, 1118468, 1398085, 2796170, 3635021, 5592340, 7270042, 14540084, 18175105, 36350210, 72700420]

約数ペア:

[(1, 72700420), (2, 36350210), (4, 18175105), (5, 14540084), (10, 7270042), (13, 5592340), (20, 3635021), (26, 2796170), (52, 1398085), (65, 1118468), (130, 559234), (137, 530660), (157, 463060), (169, 430180), (260, 279617), (274, 265330), (314, 231530), (338, 215090), (548, 132665), (628, 115765), (676, 107545), (685, 106132), (785, 92612), (845, 86036), (1370, 53066), (1570, 46306), (1690, 43018), (1781, 40820), (2041, 35620), (2740, 26533), (3140, 23153), (3380, 21509), (3562, 20410), (4082, 17810), (7124, 10205), (8164, 8905)]