28945420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{83}}^1$

素因数の和:199

約数の個数: 96

約数和(自身を含む): 73156608

約数和(自身を除く): 44211188

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 47, 53, 70, 83, 94, 106, 140, 166, 188, 212, 235, 265, 329, 332, 371, 415, 470, 530, 581, 658, 742, 830, 940, 1060, 1162, 1316, 1484, 1645, 1660, 1855, 2324, 2491, 2905, 3290, 3710, 3901, 4399, 4982, 5810, 6580, 7420, 7802, 8798, 9964, 11620, 12455, 15604, 17437, 17596, 19505, 21995, 24910, 27307, 30793, 34874, 39010, 43990, 49820, 54614, 61586, 69748, 78020, 87185, 87980, 109228, 123172, 136535, 153965, 174370, 206753, 273070, 307930, 348740, 413506, 546140, 615860, 827012, 1033765, 1447271, 2067530, 2894542, 4135060, 5789084, 7236355, 14472710, 28945420]

約数ペア:

[(1, 28945420), (2, 14472710), (4, 7236355), (5, 5789084), (7, 4135060), (10, 2894542), (14, 2067530), (20, 1447271), (28, 1033765), (35, 827012), (47, 615860), (53, 546140), (70, 413506), (83, 348740), (94, 307930), (106, 273070), (140, 206753), (166, 174370), (188, 153965), (212, 136535), (235, 123172), (265, 109228), (329, 87980), (332, 87185), (371, 78020), (415, 69748), (470, 61586), (530, 54614), (581, 49820), (658, 43990), (742, 39010), (830, 34874), (940, 30793), (1060, 27307), (1162, 24910), (1316, 21995), (1484, 19505), (1645, 17596), (1660, 17437), (1855, 15604), (2324, 12455), (2491, 11620), (2905, 9964), (3290, 8798), (3710, 7802), (3901, 7420), (4399, 6580), (4982, 5810)]