257702580

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{20749}}^1$

素因数の和:20790

約数の個数: 96

約数和(自身を含む): 836640000

約数和(自身を除く): 578937420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 27, 30, 36, 45, 46, 54, 60, 69, 90, 92, 108, 115, 135, 138, 180, 207, 230, 270, 276, 345, 414, 460, 540, 621, 690, 828, 1035, 1242, 1380, 2070, 2484, 3105, 4140, 6210, 12420, 20749, 41498, 62247, 82996, 103745, 124494, 186741, 207490, 248988, 311235, 373482, 414980, 477227, 560223, 622470, 746964, 933705, 954454, 1120446, 1244940, 1431681, 1867410, 1908908, 2240892, 2386135, 2801115, 2863362, 3734820, 4295043, 4772270, 5602230, 5726724, 7158405, 8590086, 9544540, 11204460, 12885129, 14316810, 17180172, 21475215, 25770258, 28633620, 42950430, 51540516, 64425645, 85900860, 128851290, 257702580]

約数ペア:

[(1, 257702580), (2, 128851290), (3, 85900860), (4, 64425645), (5, 51540516), (6, 42950430), (9, 28633620), (10, 25770258), (12, 21475215), (15, 17180172), (18, 14316810), (20, 12885129), (23, 11204460), (27, 9544540), (30, 8590086), (36, 7158405), (45, 5726724), (46, 5602230), (54, 4772270), (60, 4295043), (69, 3734820), (90, 2863362), (92, 2801115), (108, 2386135), (115, 2240892), (135, 1908908), (138, 1867410), (180, 1431681), (207, 1244940), (230, 1120446), (270, 954454), (276, 933705), (345, 746964), (414, 622470), (460, 560223), (540, 477227), (621, 414980), (690, 373482), (828, 311235), (1035, 248988), (1242, 207490), (1380, 186741), (2070, 124494), (2484, 103745), (3105, 82996), (4140, 62247), (6210, 41498), (12420, 20749)]