71460280

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{29287}}^1$

素因数の和:29359

約数の個数: 32

約数和(自身を含む): 163427040

約数和(自身を除く): 91966760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 29287, 58574, 117148, 146435, 234296, 292870, 585740, 1171480, 1786507, 3573014, 7146028, 8932535, 14292056, 17865070, 35730140, 71460280]

約数ペア:

[(1, 71460280), (2, 35730140), (4, 17865070), (5, 14292056), (8, 8932535), (10, 7146028), (20, 3573014), (40, 1786507), (61, 1171480), (122, 585740), (244, 292870), (305, 234296), (488, 146435), (610, 117148), (1220, 58574), (2440, 29287)]