28501830

素因数分解:

$2^1\times 3^2\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{281}}^1$

素因数の和:331

約数の個数: 144

約数和(自身を含む): 90271584

約数和(自身を除く): 61769754

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 23, 30, 35, 42, 45, 46, 49, 63, 69, 70, 90, 98, 105, 115, 126, 138, 147, 161, 207, 210, 230, 245, 281, 294, 315, 322, 345, 414, 441, 483, 490, 562, 630, 690, 735, 805, 843, 882, 966, 1035, 1127, 1405, 1449, 1470, 1610, 1686, 1967, 2070, 2205, 2254, 2415, 2529, 2810, 2898, 3381, 3934, 4215, 4410, 4830, 5058, 5635, 5901, 6463, 6762, 7245, 8430, 9835, 10143, 11270, 11802, 12645, 12926, 13769, 14490, 16905, 17703, 19389, 19670, 20286, 25290, 27538, 29505, 32315, 33810, 35406, 38778, 41307, 45241, 50715, 58167, 59010, 64630, 68845, 82614, 88515, 90482, 96945, 101430, 116334, 123921, 135723, 137690, 177030, 193890, 206535, 226205, 247842, 271446, 290835, 316687, 407169, 413070, 452410, 581670, 619605, 633374, 678615, 814338, 950061, 1239210, 1357230, 1583435, 1900122, 2035845, 2850183, 3166870, 4071690, 4750305, 5700366, 9500610, 14250915, 28501830]

約数ペア:

[(1, 28501830), (2, 14250915), (3, 9500610), (5, 5700366), (6, 4750305), (7, 4071690), (9, 3166870), (10, 2850183), (14, 2035845), (15, 1900122), (18, 1583435), (21, 1357230), (23, 1239210), (30, 950061), (35, 814338), (42, 678615), (45, 633374), (46, 619605), (49, 581670), (63, 452410), (69, 413070), (70, 407169), (90, 316687), (98, 290835), (105, 271446), (115, 247842), (126, 226205), (138, 206535), (147, 193890), (161, 177030), (207, 137690), (210, 135723), (230, 123921), (245, 116334), (281, 101430), (294, 96945), (315, 90482), (322, 88515), (345, 82614), (414, 68845), (441, 64630), (483, 59010), (490, 58167), (562, 50715), (630, 45241), (690, 41307), (735, 38778), (805, 35406), (843, 33810), (882, 32315), (966, 29505), (1035, 27538), (1127, 25290), (1405, 20286), (1449, 19670), (1470, 19389), (1610, 17703), (1686, 16905), (1967, 14490), (2070, 13769), (2205, 12926), (2254, 12645), (2415, 11802), (2529, 11270), (2810, 10143), (2898, 9835), (3381, 8430), (3934, 7245), (4215, 6762), (4410, 6463), (4830, 5901), (5058, 5635)]