71247920

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{28729}}^1$

素因数の和:28773

約数の個数: 40

約数和(自身を含む): 171000960

約数和(自身を除く): 99753040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 28729, 57458, 114916, 143645, 229832, 287290, 459664, 574580, 890599, 1149160, 1781198, 2298320, 3562396, 4452995, 7124792, 8905990, 14249584, 17811980, 35623960, 71247920]

約数ペア:

[(1, 71247920), (2, 35623960), (4, 17811980), (5, 14249584), (8, 8905990), (10, 7124792), (16, 4452995), (20, 3562396), (31, 2298320), (40, 1781198), (62, 1149160), (80, 890599), (124, 574580), (155, 459664), (248, 287290), (310, 229832), (496, 143645), (620, 114916), (1240, 57458), (2480, 28729)]