71897945

素因数分解:

$5^1\times 7^4\times {\mathrm{53}}^1\times {\mathrm{113}}^1$

素因数の和:199

約数の個数: 40

約数和(自身を含む): 103457736

約数和(自身を除く): 31559791

約数列:

[1, 5, 7, 35, 49, 53, 113, 245, 265, 343, 371, 565, 791, 1715, 1855, 2401, 2597, 3955, 5537, 5989, 12005, 12985, 18179, 27685, 29945, 38759, 41923, 90895, 127253, 193795, 209615, 271313, 293461, 636265, 1356565, 1467305, 2054227, 10271135, 14379589, 71897945]

約数ペア:

[(1, 71897945), (5, 14379589), (7, 10271135), (35, 2054227), (49, 1467305), (53, 1356565), (113, 636265), (245, 293461), (265, 271313), (343, 209615), (371, 193795), (565, 127253), (791, 90895), (1715, 41923), (1855, 38759), (2401, 29945), (2597, 27685), (3955, 18179), (5537, 12985), (5989, 12005)]