19708980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{241}}^1$

素因数の和:329

約数の個数: 96

約数和(自身を含む): 58544640

約数和(自身を除く): 38835660

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 29, 30, 47, 58, 60, 87, 94, 116, 141, 145, 174, 188, 235, 241, 282, 290, 348, 435, 470, 482, 564, 580, 705, 723, 870, 940, 964, 1205, 1363, 1410, 1446, 1740, 2410, 2726, 2820, 2892, 3615, 4089, 4820, 5452, 6815, 6989, 7230, 8178, 11327, 13630, 13978, 14460, 16356, 20445, 20967, 22654, 27260, 27956, 33981, 34945, 40890, 41934, 45308, 56635, 67962, 69890, 81780, 83868, 104835, 113270, 135924, 139780, 169905, 209670, 226540, 328483, 339810, 419340, 656966, 679620, 985449, 1313932, 1642415, 1970898, 3284830, 3941796, 4927245, 6569660, 9854490, 19708980]

約数ペア:

[(1, 19708980), (2, 9854490), (3, 6569660), (4, 4927245), (5, 3941796), (6, 3284830), (10, 1970898), (12, 1642415), (15, 1313932), (20, 985449), (29, 679620), (30, 656966), (47, 419340), (58, 339810), (60, 328483), (87, 226540), (94, 209670), (116, 169905), (141, 139780), (145, 135924), (174, 113270), (188, 104835), (235, 83868), (241, 81780), (282, 69890), (290, 67962), (348, 56635), (435, 45308), (470, 41934), (482, 40890), (564, 34945), (580, 33981), (705, 27956), (723, 27260), (870, 22654), (940, 20967), (964, 20445), (1205, 16356), (1363, 14460), (1410, 13978), (1446, 13630), (1740, 11327), (2410, 8178), (2726, 7230), (2820, 6989), (2892, 6815), (3615, 5452), (4089, 4820)]