18019400

素因数分解:

$2^3\times 5^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{211}}^1$

素因数の和:295

約数の個数: 96

約数和(自身を含む): 48895680

約数和(自身を除く): 30876280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 50, 56, 61, 70, 100, 122, 140, 175, 200, 211, 244, 280, 305, 350, 422, 427, 488, 610, 700, 844, 854, 1055, 1220, 1400, 1477, 1525, 1688, 1708, 2110, 2135, 2440, 2954, 3050, 3416, 4220, 4270, 5275, 5908, 6100, 7385, 8440, 8540, 10550, 10675, 11816, 12200, 12871, 14770, 17080, 21100, 21350, 25742, 29540, 36925, 42200, 42700, 51484, 59080, 64355, 73850, 85400, 90097, 102968, 128710, 147700, 180194, 257420, 295400, 321775, 360388, 450485, 514840, 643550, 720776, 900970, 1287100, 1801940, 2252425, 2574200, 3603880, 4504850, 9009700, 18019400]

約数ペア:

[(1, 18019400), (2, 9009700), (4, 4504850), (5, 3603880), (7, 2574200), (8, 2252425), (10, 1801940), (14, 1287100), (20, 900970), (25, 720776), (28, 643550), (35, 514840), (40, 450485), (50, 360388), (56, 321775), (61, 295400), (70, 257420), (100, 180194), (122, 147700), (140, 128710), (175, 102968), (200, 90097), (211, 85400), (244, 73850), (280, 64355), (305, 59080), (350, 51484), (422, 42700), (427, 42200), (488, 36925), (610, 29540), (700, 25742), (844, 21350), (854, 21100), (1055, 17080), (1220, 14770), (1400, 12871), (1477, 12200), (1525, 11816), (1688, 10675), (1708, 10550), (2110, 8540), (2135, 8440), (2440, 7385), (2954, 6100), (3050, 5908), (3416, 5275), (4220, 4270)]