20280078

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{4127}}^1$

素因数の和:4158

約数の個数: 64

約数和(自身を含む): 55480320

約数和(自身を除く): 35200242

約数列:

[1, 2, 3, 6, 7, 9, 13, 14, 18, 21, 26, 27, 39, 42, 54, 63, 78, 91, 117, 126, 182, 189, 234, 273, 351, 378, 546, 702, 819, 1638, 2457, 4127, 4914, 8254, 12381, 24762, 28889, 37143, 53651, 57778, 74286, 86667, 107302, 111429, 160953, 173334, 222858, 260001, 321906, 375557, 482859, 520002, 751114, 780003, 965718, 1126671, 1448577, 1560006, 2253342, 2897154, 3380013, 6760026, 10140039, 20280078]

約数ペア:

[(1, 20280078), (2, 10140039), (3, 6760026), (6, 3380013), (7, 2897154), (9, 2253342), (13, 1560006), (14, 1448577), (18, 1126671), (21, 965718), (26, 780003), (27, 751114), (39, 520002), (42, 482859), (54, 375557), (63, 321906), (78, 260001), (91, 222858), (117, 173334), (126, 160953), (182, 111429), (189, 107302), (234, 86667), (273, 74286), (351, 57778), (378, 53651), (546, 37143), (702, 28889), (819, 24762), (1638, 12381), (2457, 8254), (4127, 4914)]