71305820

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{401}}^1\times {\mathrm{523}}^1$

素因数の和:950

約数の個数: 48

約数和(自身を含む): 159249888

約数和(自身を除く): 87944068

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 401, 523, 802, 1046, 1604, 2005, 2092, 2615, 4010, 5230, 6817, 8020, 8891, 10460, 13634, 17782, 27268, 34085, 35564, 44455, 68170, 88910, 136340, 177820, 209723, 419446, 838892, 1048615, 2097230, 3565291, 4194460, 7130582, 14261164, 17826455, 35652910, 71305820]

約数ペア:

[(1, 71305820), (2, 35652910), (4, 17826455), (5, 14261164), (10, 7130582), (17, 4194460), (20, 3565291), (34, 2097230), (68, 1048615), (85, 838892), (170, 419446), (340, 209723), (401, 177820), (523, 136340), (802, 88910), (1046, 68170), (1604, 44455), (2005, 35564), (2092, 34085), (2615, 27268), (4010, 17782), (5230, 13634), (6817, 10460), (8020, 8891)]