20165660

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{101}}^1\times {\mathrm{149}}^1$

素因数の和:326

約数の個数: 48

約数和(自身を含む): 43696800

約数和(自身を除く): 23531140

約数列:

[1, 2, 4, 5, 10, 20, 67, 101, 134, 149, 202, 268, 298, 335, 404, 505, 596, 670, 745, 1010, 1340, 1490, 2020, 2980, 6767, 9983, 13534, 15049, 19966, 27068, 30098, 33835, 39932, 49915, 60196, 67670, 75245, 99830, 135340, 150490, 199660, 300980, 1008283, 2016566, 4033132, 5041415, 10082830, 20165660]

約数ペア:

[(1, 20165660), (2, 10082830), (4, 5041415), (5, 4033132), (10, 2016566), (20, 1008283), (67, 300980), (101, 199660), (134, 150490), (149, 135340), (202, 99830), (268, 75245), (298, 67670), (335, 60196), (404, 49915), (505, 39932), (596, 33835), (670, 30098), (745, 27068), (1010, 19966), (1340, 15049), (1490, 13534), (2020, 9983), (2980, 6767)]