18471420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{491}}^1$

素因数の和:536

約数の個数: 144

約数和(自身を含む): 64471680

約数和(自身を除く): 46000260

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 19, 20, 22, 30, 33, 36, 38, 44, 45, 55, 57, 60, 66, 76, 90, 95, 99, 110, 114, 132, 165, 171, 180, 190, 198, 209, 220, 228, 285, 330, 342, 380, 396, 418, 491, 495, 570, 627, 660, 684, 836, 855, 982, 990, 1045, 1140, 1254, 1473, 1710, 1881, 1964, 1980, 2090, 2455, 2508, 2946, 3135, 3420, 3762, 4180, 4419, 4910, 5401, 5892, 6270, 7365, 7524, 8838, 9329, 9405, 9820, 10802, 12540, 14730, 16203, 17676, 18658, 18810, 21604, 22095, 27005, 27987, 29460, 32406, 37316, 37620, 44190, 46645, 48609, 54010, 55974, 64812, 81015, 83961, 88380, 93290, 97218, 102619, 108020, 111948, 139935, 162030, 167922, 186580, 194436, 205238, 243045, 279870, 307857, 324060, 335844, 410476, 419805, 486090, 513095, 559740, 615714, 839610, 923571, 972180, 1026190, 1231428, 1539285, 1679220, 1847142, 2052380, 3078570, 3694284, 4617855, 6157140, 9235710, 18471420]

約数ペア:

[(1, 18471420), (2, 9235710), (3, 6157140), (4, 4617855), (5, 3694284), (6, 3078570), (9, 2052380), (10, 1847142), (11, 1679220), (12, 1539285), (15, 1231428), (18, 1026190), (19, 972180), (20, 923571), (22, 839610), (30, 615714), (33, 559740), (36, 513095), (38, 486090), (44, 419805), (45, 410476), (55, 335844), (57, 324060), (60, 307857), (66, 279870), (76, 243045), (90, 205238), (95, 194436), (99, 186580), (110, 167922), (114, 162030), (132, 139935), (165, 111948), (171, 108020), (180, 102619), (190, 97218), (198, 93290), (209, 88380), (220, 83961), (228, 81015), (285, 64812), (330, 55974), (342, 54010), (380, 48609), (396, 46645), (418, 44190), (491, 37620), (495, 37316), (570, 32406), (627, 29460), (660, 27987), (684, 27005), (836, 22095), (855, 21604), (982, 18810), (990, 18658), (1045, 17676), (1140, 16203), (1254, 14730), (1473, 12540), (1710, 10802), (1881, 9820), (1964, 9405), (1980, 9329), (2090, 8838), (2455, 7524), (2508, 7365), (2946, 6270), (3135, 5892), (3420, 5401), (3762, 4910), (4180, 4419)]