20858588140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{421}}^1\times {\mathrm{6571}}^1$

素因数の和:7043

約数の個数: 96

約数和(自身を含む): 48922493760

約数和(自身を除く): 28063905620

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 29, 52, 58, 65, 116, 130, 145, 260, 290, 377, 421, 580, 754, 842, 1508, 1684, 1885, 2105, 3770, 4210, 5473, 6571, 7540, 8420, 10946, 12209, 13142, 21892, 24418, 26284, 27365, 32855, 48836, 54730, 61045, 65710, 85423, 109460, 122090, 131420, 158717, 170846, 190559, 244180, 317434, 341692, 381118, 427115, 634868, 762236, 793585, 854230, 952795, 1587170, 1708460, 1905590, 2477267, 2766391, 3174340, 3811180, 4954534, 5532782, 9909068, 11065564, 12386335, 13831955, 24772670, 27663910, 35963083, 49545340, 55327820, 71926166, 80225339, 143852332, 160450678, 179815415, 320901356, 359630830, 401126695, 719261660, 802253390, 1042929407, 1604506780, 2085858814, 4171717628, 5214647035, 10429294070, 20858588140]

約数ペア:

[(1, 20858588140), (2, 10429294070), (4, 5214647035), (5, 4171717628), (10, 2085858814), (13, 1604506780), (20, 1042929407), (26, 802253390), (29, 719261660), (52, 401126695), (58, 359630830), (65, 320901356), (116, 179815415), (130, 160450678), (145, 143852332), (260, 80225339), (290, 71926166), (377, 55327820), (421, 49545340), (580, 35963083), (754, 27663910), (842, 24772670), (1508, 13831955), (1684, 12386335), (1885, 11065564), (2105, 9909068), (3770, 5532782), (4210, 4954534), (5473, 3811180), (6571, 3174340), (7540, 2766391), (8420, 2477267), (10946, 1905590), (12209, 1708460), (13142, 1587170), (21892, 952795), (24418, 854230), (26284, 793585), (27365, 762236), (32855, 634868), (48836, 427115), (54730, 381118), (61045, 341692), (65710, 317434), (85423, 244180), (109460, 190559), (122090, 170846), (131420, 158717)]