38845520

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{977}}^1$

素因数の和:1068

約数の個数: 80

約数和(自身を含む): 104779008

約数和(自身を除く): 65933488

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 71, 80, 112, 140, 142, 280, 284, 355, 497, 560, 568, 710, 977, 994, 1136, 1420, 1954, 1988, 2485, 2840, 3908, 3976, 4885, 4970, 5680, 6839, 7816, 7952, 9770, 9940, 13678, 15632, 19540, 19880, 27356, 34195, 39080, 39760, 54712, 68390, 69367, 78160, 109424, 136780, 138734, 273560, 277468, 346835, 485569, 547120, 554936, 693670, 971138, 1109872, 1387340, 1942276, 2427845, 2774680, 3884552, 4855690, 5549360, 7769104, 9711380, 19422760, 38845520]

約数ペア:

[(1, 38845520), (2, 19422760), (4, 9711380), (5, 7769104), (7, 5549360), (8, 4855690), (10, 3884552), (14, 2774680), (16, 2427845), (20, 1942276), (28, 1387340), (35, 1109872), (40, 971138), (56, 693670), (70, 554936), (71, 547120), (80, 485569), (112, 346835), (140, 277468), (142, 273560), (280, 138734), (284, 136780), (355, 109424), (497, 78160), (560, 69367), (568, 68390), (710, 54712), (977, 39760), (994, 39080), (1136, 34195), (1420, 27356), (1954, 19880), (1988, 19540), (2485, 15632), (2840, 13678), (3908, 9940), (3976, 9770), (4885, 7952), (4970, 7816), (5680, 6839)]