3819820

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{101}}^1$

素因数の和:202

約数の個数: 48

約数和(自身を含む): 8499456

約数和(自身を除く): 4679636

約数列:

[1, 2, 4, 5, 10, 20, 31, 61, 62, 101, 122, 124, 155, 202, 244, 305, 310, 404, 505, 610, 620, 1010, 1220, 1891, 2020, 3131, 3782, 6161, 6262, 7564, 9455, 12322, 12524, 15655, 18910, 24644, 30805, 31310, 37820, 61610, 62620, 123220, 190991, 381982, 763964, 954955, 1909910, 3819820]

約数ペア:

[(1, 3819820), (2, 1909910), (4, 954955), (5, 763964), (10, 381982), (20, 190991), (31, 123220), (61, 62620), (62, 61610), (101, 37820), (122, 31310), (124, 30805), (155, 24644), (202, 18910), (244, 15655), (305, 12524), (310, 12322), (404, 9455), (505, 7564), (610, 6262), (620, 6161), (1010, 3782), (1220, 3131), (1891, 2020)]