20181272968

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{113}}^1\times {\mathrm{199}}^1\times {\mathrm{6599}}^1$

素因数の和:6934

約数の個数: 64

約数和(自身を含む): 40629600000

約数和(自身を除く): 20448327032

約数列:

[1, 2, 4, 8, 17, 34, 68, 113, 136, 199, 226, 398, 452, 796, 904, 1592, 1921, 3383, 3842, 6599, 6766, 7684, 13198, 13532, 15368, 22487, 26396, 27064, 44974, 52792, 89948, 112183, 179896, 224366, 382279, 448732, 745687, 764558, 897464, 1313201, 1491374, 1529116, 2626402, 2982748, 3058232, 5252804, 5965496, 10505608, 12676679, 22324417, 25353358, 44648834, 50706716, 89297668, 101413432, 148391713, 178595336, 296783426, 593566852, 1187133704, 2522659121, 5045318242, 10090636484, 20181272968]

約数ペア:

[(1, 20181272968), (2, 10090636484), (4, 5045318242), (8, 2522659121), (17, 1187133704), (34, 593566852), (68, 296783426), (113, 178595336), (136, 148391713), (199, 101413432), (226, 89297668), (398, 50706716), (452, 44648834), (796, 25353358), (904, 22324417), (1592, 12676679), (1921, 10505608), (3383, 5965496), (3842, 5252804), (6599, 3058232), (6766, 2982748), (7684, 2626402), (13198, 1529116), (13532, 1491374), (15368, 1313201), (22487, 897464), (26396, 764558), (27064, 745687), (44974, 448732), (52792, 382279), (89948, 224366), (112183, 179896)]