80721788

素因数分解:

$2^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{167}}^1\times {\mathrm{283}}^1$

素因数の和:522

約数の個数: 48

約数和(自身を含む): 165656064

約数和(自身を除く): 84934276

約数列:

[1, 2, 4, 7, 14, 28, 61, 122, 167, 244, 283, 334, 427, 566, 668, 854, 1132, 1169, 1708, 1981, 2338, 3962, 4676, 7924, 10187, 17263, 20374, 34526, 40748, 47261, 69052, 71309, 94522, 120841, 142618, 189044, 241682, 285236, 330827, 483364, 661654, 1323308, 2882921, 5765842, 11531684, 20180447, 40360894, 80721788]

約数ペア:

[(1, 80721788), (2, 40360894), (4, 20180447), (7, 11531684), (14, 5765842), (28, 2882921), (61, 1323308), (122, 661654), (167, 483364), (244, 330827), (283, 285236), (334, 241682), (427, 189044), (566, 142618), (668, 120841), (854, 94522), (1132, 71309), (1169, 69052), (1708, 47261), (1981, 40748), (2338, 34526), (3962, 20374), (4676, 17263), (7924, 10187)]