20181489368

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{191}}^1\times {\mathrm{5281}}^1$

素因数の和:5580

約数の個数: 64

約数和(自身を含む): 39612464640

約数和(自身を除く): 19430975272

約数列:

[1, 2, 4, 8, 41, 61, 82, 122, 164, 191, 244, 328, 382, 488, 764, 1528, 2501, 5002, 5281, 7831, 10004, 10562, 11651, 15662, 20008, 21124, 23302, 31324, 42248, 46604, 62648, 93208, 216521, 322141, 433042, 477691, 644282, 866084, 955382, 1008671, 1288564, 1732168, 1910764, 2017342, 2577128, 3821528, 4034684, 8069368, 13207781, 26415562, 41355511, 52831124, 61528931, 82711022, 105662248, 123057862, 165422044, 246115724, 330844088, 492231448, 2522686171, 5045372342, 10090744684, 20181489368]

約数ペア:

[(1, 20181489368), (2, 10090744684), (4, 5045372342), (8, 2522686171), (41, 492231448), (61, 330844088), (82, 246115724), (122, 165422044), (164, 123057862), (191, 105662248), (244, 82711022), (328, 61528931), (382, 52831124), (488, 41355511), (764, 26415562), (1528, 13207781), (2501, 8069368), (5002, 4034684), (5281, 3821528), (7831, 2577128), (10004, 2017342), (10562, 1910764), (11651, 1732168), (15662, 1288564), (20008, 1008671), (21124, 955382), (23302, 866084), (31324, 644282), (42248, 477691), (46604, 433042), (62648, 322141), (93208, 216521)]