20329960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{4271}}^1$

素因数の和:4306

約数の個数: 64

約数和(自身を含む): 55365120

約数和(自身を除く): 35035160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 28, 34, 35, 40, 56, 68, 70, 85, 119, 136, 140, 170, 238, 280, 340, 476, 595, 680, 952, 1190, 2380, 4271, 4760, 8542, 17084, 21355, 29897, 34168, 42710, 59794, 72607, 85420, 119588, 145214, 149485, 170840, 239176, 290428, 298970, 363035, 508249, 580856, 597940, 726070, 1016498, 1195880, 1452140, 2032996, 2541245, 2904280, 4065992, 5082490, 10164980, 20329960]

約数ペア:

[(1, 20329960), (2, 10164980), (4, 5082490), (5, 4065992), (7, 2904280), (8, 2541245), (10, 2032996), (14, 1452140), (17, 1195880), (20, 1016498), (28, 726070), (34, 597940), (35, 580856), (40, 508249), (56, 363035), (68, 298970), (70, 290428), (85, 239176), (119, 170840), (136, 149485), (140, 145214), (170, 119588), (238, 85420), (280, 72607), (340, 59794), (476, 42710), (595, 34168), (680, 29897), (952, 21355), (1190, 17084), (2380, 8542), (4271, 4760)]