28687860

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{3391}}^1$

素因数の和:3453

約数の個数: 72

約数和(自身を含む): 88897536

約数和(自身を除く): 60209676

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 47, 60, 90, 94, 141, 180, 188, 235, 282, 423, 470, 564, 705, 846, 940, 1410, 1692, 2115, 2820, 3391, 4230, 6782, 8460, 10173, 13564, 16955, 20346, 30519, 33910, 40692, 50865, 61038, 67820, 101730, 122076, 152595, 159377, 203460, 305190, 318754, 478131, 610380, 637508, 796885, 956262, 1434393, 1593770, 1912524, 2390655, 2868786, 3187540, 4781310, 5737572, 7171965, 9562620, 14343930, 28687860]

約数ペア:

[(1, 28687860), (2, 14343930), (3, 9562620), (4, 7171965), (5, 5737572), (6, 4781310), (9, 3187540), (10, 2868786), (12, 2390655), (15, 1912524), (18, 1593770), (20, 1434393), (30, 956262), (36, 796885), (45, 637508), (47, 610380), (60, 478131), (90, 318754), (94, 305190), (141, 203460), (180, 159377), (188, 152595), (235, 122076), (282, 101730), (423, 67820), (470, 61038), (564, 50865), (705, 40692), (846, 33910), (940, 30519), (1410, 20346), (1692, 16955), (2115, 13564), (2820, 10173), (3391, 8460), (4230, 6782)]