20021664

素因数分解:

$2^5\times 3^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{263}}^1$

素因数の和:350

約数の個数: 96

約数和(自身を含む): 57746304

約数和(自身を除く): 37724640

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 32, 39, 48, 52, 61, 78, 96, 104, 122, 156, 183, 208, 244, 263, 312, 366, 416, 488, 526, 624, 732, 789, 793, 976, 1052, 1248, 1464, 1578, 1586, 1952, 2104, 2379, 2928, 3156, 3172, 3419, 4208, 4758, 5856, 6312, 6344, 6838, 8416, 9516, 10257, 12624, 12688, 13676, 16043, 19032, 20514, 25248, 25376, 27352, 32086, 38064, 41028, 48129, 54704, 64172, 76128, 82056, 96258, 109408, 128344, 164112, 192516, 208559, 256688, 328224, 385032, 417118, 513376, 625677, 770064, 834236, 1251354, 1540128, 1668472, 2502708, 3336944, 5005416, 6673888, 10010832, 20021664]

約数ペア:

[(1, 20021664), (2, 10010832), (3, 6673888), (4, 5005416), (6, 3336944), (8, 2502708), (12, 1668472), (13, 1540128), (16, 1251354), (24, 834236), (26, 770064), (32, 625677), (39, 513376), (48, 417118), (52, 385032), (61, 328224), (78, 256688), (96, 208559), (104, 192516), (122, 164112), (156, 128344), (183, 109408), (208, 96258), (244, 82056), (263, 76128), (312, 64172), (366, 54704), (416, 48129), (488, 41028), (526, 38064), (624, 32086), (732, 27352), (789, 25376), (793, 25248), (976, 20514), (1052, 19032), (1248, 16043), (1464, 13676), (1578, 12688), (1586, 12624), (1952, 10257), (2104, 9516), (2379, 8416), (2928, 6838), (3156, 6344), (3172, 6312), (3419, 5856), (4208, 4758)]