67721980

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{109229}}^1$

素因数の和:109269

約数の個数: 24

約数和(自身を含む): 146805120

約数和(自身を除く): 79083140

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 109229, 218458, 436916, 546145, 1092290, 2184580, 3386099, 6772198, 13544396, 16930495, 33860990, 67721980]

約数ペア:

[(1, 67721980), (2, 33860990), (4, 16930495), (5, 13544396), (10, 6772198), (20, 3386099), (31, 2184580), (62, 1092290), (124, 546145), (155, 436916), (310, 218458), (620, 109229)]