20218378935

素因数分解:

$3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1\times {\mathrm{109}}^1\times {\mathrm{2777}}^1$

素因数の和:3028

約数の個数: 64

約数和(自身を含む): 33648024960

約数和(自身を除く): 13429646025

約数列:

[1, 3, 5, 15, 61, 73, 109, 183, 219, 305, 327, 365, 545, 915, 1095, 1635, 2777, 4453, 6649, 7957, 8331, 13359, 13885, 19947, 22265, 23871, 33245, 39785, 41655, 66795, 99735, 119355, 169397, 202721, 302693, 485377, 508191, 608163, 846985, 908079, 1013605, 1456131, 1513465, 2426885, 2540955, 3040815, 4540395, 7280655, 12365981, 18464273, 22096589, 37097943, 55392819, 61829905, 66289767, 92321365, 110482945, 185489715, 276964095, 331448835, 1347891929, 4043675787, 6739459645, 20218378935]

約数ペア:

[(1, 20218378935), (3, 6739459645), (5, 4043675787), (15, 1347891929), (61, 331448835), (73, 276964095), (109, 185489715), (183, 110482945), (219, 92321365), (305, 66289767), (327, 61829905), (365, 55392819), (545, 37097943), (915, 22096589), (1095, 18464273), (1635, 12365981), (2777, 7280655), (4453, 4540395), (6649, 3040815), (7957, 2540955), (8331, 2426885), (13359, 1513465), (13885, 1456131), (19947, 1013605), (22265, 908079), (23871, 846985), (33245, 608163), (39785, 508191), (41655, 485377), (66795, 302693), (99735, 202721), (119355, 169397)]