87394780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{9689}}^1$

素因数の和:9750

約数の個数: 48

約数和(自身を含む): 205117920

約数和(自身を除く): 117723140

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 41, 44, 55, 82, 110, 164, 205, 220, 410, 451, 820, 902, 1804, 2255, 4510, 9020, 9689, 19378, 38756, 48445, 96890, 106579, 193780, 213158, 397249, 426316, 532895, 794498, 1065790, 1588996, 1986245, 2131580, 3972490, 4369739, 7944980, 8739478, 17478956, 21848695, 43697390, 87394780]

約数ペア:

[(1, 87394780), (2, 43697390), (4, 21848695), (5, 17478956), (10, 8739478), (11, 7944980), (20, 4369739), (22, 3972490), (41, 2131580), (44, 1986245), (55, 1588996), (82, 1065790), (110, 794498), (164, 532895), (205, 426316), (220, 397249), (410, 213158), (451, 193780), (820, 106579), (902, 96890), (1804, 48445), (2255, 38756), (4510, 19378), (9020, 9689)]