40719920

素因数分解:

$2^4\times 5^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{107}}^1$

素因数の和:258

約数の個数: 80

約数和(自身を含む): 98350848

約数和(自身を除く): 57630928

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 67, 71, 80, 107, 134, 142, 214, 268, 284, 335, 355, 428, 535, 536, 568, 670, 710, 856, 1070, 1072, 1136, 1340, 1420, 1712, 2140, 2680, 2840, 4280, 4757, 5360, 5680, 7169, 7597, 8560, 9514, 14338, 15194, 19028, 23785, 28676, 30388, 35845, 37985, 38056, 47570, 57352, 60776, 71690, 75970, 76112, 95140, 114704, 121552, 143380, 151940, 190280, 286760, 303880, 380560, 508999, 573520, 607760, 1017998, 2035996, 2544995, 4071992, 5089990, 8143984, 10179980, 20359960, 40719920]

約数ペア:

[(1, 40719920), (2, 20359960), (4, 10179980), (5, 8143984), (8, 5089990), (10, 4071992), (16, 2544995), (20, 2035996), (40, 1017998), (67, 607760), (71, 573520), (80, 508999), (107, 380560), (134, 303880), (142, 286760), (214, 190280), (268, 151940), (284, 143380), (335, 121552), (355, 114704), (428, 95140), (535, 76112), (536, 75970), (568, 71690), (670, 60776), (710, 57352), (856, 47570), (1070, 38056), (1072, 37985), (1136, 35845), (1340, 30388), (1420, 28676), (1712, 23785), (2140, 19028), (2680, 15194), (2840, 14338), (4280, 9514), (4757, 8560), (5360, 7597), (5680, 7169)]