20921490

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{1123}}^1$

素因数の和:1165

約数の個数: 80

約数和(自身を含む): 58753728

約数和(自身を除く): 37832238

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 23, 27, 30, 45, 46, 54, 69, 81, 90, 115, 135, 138, 162, 207, 230, 270, 345, 405, 414, 621, 690, 810, 1035, 1123, 1242, 1863, 2070, 2246, 3105, 3369, 3726, 5615, 6210, 6738, 9315, 10107, 11230, 16845, 18630, 20214, 25829, 30321, 33690, 50535, 51658, 60642, 77487, 90963, 101070, 129145, 151605, 154974, 181926, 232461, 258290, 303210, 387435, 454815, 464922, 697383, 774870, 909630, 1162305, 1394766, 2092149, 2324610, 3486915, 4184298, 6973830, 10460745, 20921490]

約数ペア:

[(1, 20921490), (2, 10460745), (3, 6973830), (5, 4184298), (6, 3486915), (9, 2324610), (10, 2092149), (15, 1394766), (18, 1162305), (23, 909630), (27, 774870), (30, 697383), (45, 464922), (46, 454815), (54, 387435), (69, 303210), (81, 258290), (90, 232461), (115, 181926), (135, 154974), (138, 151605), (162, 129145), (207, 101070), (230, 90963), (270, 77487), (345, 60642), (405, 51658), (414, 50535), (621, 33690), (690, 30321), (810, 25829), (1035, 20214), (1123, 18630), (1242, 16845), (1863, 11230), (2070, 10107), (2246, 9315), (3105, 6738), (3369, 6210), (3726, 5615)]