20305488

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{223}}^1\times {\mathrm{271}}^1$

素因数の和:512

約数の個数: 80

約数和(自身を含む): 60440576

約数和(自身を除く): 40135088

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 84, 112, 168, 223, 271, 336, 446, 542, 669, 813, 892, 1084, 1338, 1561, 1626, 1784, 1897, 2168, 2676, 3122, 3252, 3568, 3794, 4336, 4683, 5352, 5691, 6244, 6504, 7588, 9366, 10704, 11382, 12488, 13008, 15176, 18732, 22764, 24976, 30352, 37464, 45528, 60433, 74928, 91056, 120866, 181299, 241732, 362598, 423031, 483464, 725196, 846062, 966928, 1269093, 1450392, 1692124, 2538186, 2900784, 3384248, 5076372, 6768496, 10152744, 20305488]

約数ペア:

[(1, 20305488), (2, 10152744), (3, 6768496), (4, 5076372), (6, 3384248), (7, 2900784), (8, 2538186), (12, 1692124), (14, 1450392), (16, 1269093), (21, 966928), (24, 846062), (28, 725196), (42, 483464), (48, 423031), (56, 362598), (84, 241732), (112, 181299), (168, 120866), (223, 91056), (271, 74928), (336, 60433), (446, 45528), (542, 37464), (669, 30352), (813, 24976), (892, 22764), (1084, 18732), (1338, 15176), (1561, 13008), (1626, 12488), (1784, 11382), (1897, 10704), (2168, 9366), (2676, 7588), (3122, 6504), (3252, 6244), (3568, 5691), (3794, 5352), (4336, 4683)]