18841830

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{83}}^1$

素因数の和:170

約数の個数: 128

約数和(自身を含む): 55738368

約数和(自身を除く): 36896538

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 23, 30, 35, 42, 46, 47, 69, 70, 83, 94, 105, 115, 138, 141, 161, 166, 210, 230, 235, 249, 282, 322, 329, 345, 415, 470, 483, 498, 581, 658, 690, 705, 805, 830, 966, 987, 1081, 1162, 1245, 1410, 1610, 1645, 1743, 1909, 1974, 2162, 2415, 2490, 2905, 3243, 3290, 3486, 3818, 3901, 4830, 4935, 5405, 5727, 5810, 6486, 7567, 7802, 8715, 9545, 9870, 10810, 11454, 11703, 13363, 15134, 16215, 17430, 19090, 19505, 22701, 23406, 26726, 27307, 28635, 32430, 37835, 39010, 40089, 45402, 54614, 57270, 58515, 66815, 75670, 80178, 81921, 89723, 113505, 117030, 133630, 136535, 163842, 179446, 200445, 227010, 269169, 273070, 400890, 409605, 448615, 538338, 628061, 819210, 897230, 1256122, 1345845, 1884183, 2691690, 3140305, 3768366, 6280610, 9420915, 18841830]

約数ペア:

[(1, 18841830), (2, 9420915), (3, 6280610), (5, 3768366), (6, 3140305), (7, 2691690), (10, 1884183), (14, 1345845), (15, 1256122), (21, 897230), (23, 819210), (30, 628061), (35, 538338), (42, 448615), (46, 409605), (47, 400890), (69, 273070), (70, 269169), (83, 227010), (94, 200445), (105, 179446), (115, 163842), (138, 136535), (141, 133630), (161, 117030), (166, 113505), (210, 89723), (230, 81921), (235, 80178), (249, 75670), (282, 66815), (322, 58515), (329, 57270), (345, 54614), (415, 45402), (470, 40089), (483, 39010), (498, 37835), (581, 32430), (658, 28635), (690, 27307), (705, 26726), (805, 23406), (830, 22701), (966, 19505), (987, 19090), (1081, 17430), (1162, 16215), (1245, 15134), (1410, 13363), (1610, 11703), (1645, 11454), (1743, 10810), (1909, 9870), (1974, 9545), (2162, 8715), (2415, 7802), (2490, 7567), (2905, 6486), (3243, 5810), (3290, 5727), (3486, 5405), (3818, 4935), (3901, 4830)]