19997703075

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{167}}^1\times {\mathrm{13417}}^1$

素因数の和:13621

約数の個数: 96

約数和(自身を含む): 40251423744

約数和(自身を除く): 20253720669

約数列:

[1, 3, 5, 7, 15, 17, 21, 25, 35, 51, 75, 85, 105, 119, 167, 175, 255, 357, 425, 501, 525, 595, 835, 1169, 1275, 1785, 2505, 2839, 2975, 3507, 4175, 5845, 8517, 8925, 12525, 13417, 14195, 17535, 19873, 29225, 40251, 42585, 59619, 67085, 70975, 87675, 93919, 99365, 201255, 212925, 228089, 281757, 298095, 335425, 469595, 496825, 684267, 1006275, 1140445, 1408785, 1490475, 1596623, 2240639, 2347975, 3421335, 4789869, 5702225, 6721917, 7043925, 7983115, 11203195, 15684473, 17106675, 23949345, 33609585, 38090863, 39915575, 47053419, 56015975, 78422365, 114272589, 119746725, 168047925, 190454315, 235267095, 266636041, 392111825, 571362945, 799908123, 952271575, 1176335475, 1333180205, 2856814725, 3999540615, 6665901025, 19997703075]

約数ペア:

[(1, 19997703075), (3, 6665901025), (5, 3999540615), (7, 2856814725), (15, 1333180205), (17, 1176335475), (21, 952271575), (25, 799908123), (35, 571362945), (51, 392111825), (75, 266636041), (85, 235267095), (105, 190454315), (119, 168047925), (167, 119746725), (175, 114272589), (255, 78422365), (357, 56015975), (425, 47053419), (501, 39915575), (525, 38090863), (595, 33609585), (835, 23949345), (1169, 17106675), (1275, 15684473), (1785, 11203195), (2505, 7983115), (2839, 7043925), (2975, 6721917), (3507, 5702225), (4175, 4789869), (5845, 3421335), (8517, 2347975), (8925, 2240639), (12525, 1596623), (13417, 1490475), (14195, 1408785), (17535, 1140445), (19873, 1006275), (29225, 684267), (40251, 496825), (42585, 469595), (59619, 335425), (67085, 298095), (70975, 281757), (87675, 228089), (93919, 212925), (99365, 201255)]