202020920

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{227}}^1\times {\mathrm{1171}}^1$

素因数の和:1428

約数の個数: 64

約数和(自身を含む): 480988800

約数和(自身を除く): 278967880

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 227, 380, 454, 760, 908, 1135, 1171, 1816, 2270, 2342, 4313, 4540, 4684, 5855, 8626, 9080, 9368, 11710, 17252, 21565, 22249, 23420, 34504, 43130, 44498, 46840, 86260, 88996, 111245, 172520, 177992, 222490, 265817, 444980, 531634, 889960, 1063268, 1329085, 2126536, 2658170, 5050523, 5316340, 10101046, 10632680, 20202092, 25252615, 40404184, 50505230, 101010460, 202020920]

約数ペア:

[(1, 202020920), (2, 101010460), (4, 50505230), (5, 40404184), (8, 25252615), (10, 20202092), (19, 10632680), (20, 10101046), (38, 5316340), (40, 5050523), (76, 2658170), (95, 2126536), (152, 1329085), (190, 1063268), (227, 889960), (380, 531634), (454, 444980), (760, 265817), (908, 222490), (1135, 177992), (1171, 172520), (1816, 111245), (2270, 88996), (2342, 86260), (4313, 46840), (4540, 44498), (4684, 43130), (5855, 34504), (8626, 23420), (9080, 22249), (9368, 21565), (11710, 17252)]