640930320

素因数分解:

$2^4\times 3^4\times 5^1\times {\mathrm{98909}}^1$

素因数の和:98934

約数の個数: 100

約数和(自身を含む): 2226068460

約数和(自身を除く): 1585138140

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 81, 90, 108, 120, 135, 144, 162, 180, 216, 240, 270, 324, 360, 405, 432, 540, 648, 720, 810, 1080, 1296, 1620, 2160, 3240, 6480, 98909, 197818, 296727, 395636, 494545, 593454, 791272, 890181, 989090, 1186908, 1483635, 1582544, 1780362, 1978180, 2373816, 2670543, 2967270, 3560724, 3956360, 4450905, 4747632, 5341086, 5934540, 7121448, 7912720, 8011629, 8901810, 10682172, 11869080, 13352715, 14242896, 16023258, 17803620, 21364344, 23738160, 26705430, 32046516, 35607240, 40058145, 42728688, 53410860, 64093032, 71214480, 80116290, 106821720, 128186064, 160232580, 213643440, 320465160, 640930320]

約数ペア:

[(1, 640930320), (2, 320465160), (3, 213643440), (4, 160232580), (5, 128186064), (6, 106821720), (8, 80116290), (9, 71214480), (10, 64093032), (12, 53410860), (15, 42728688), (16, 40058145), (18, 35607240), (20, 32046516), (24, 26705430), (27, 23738160), (30, 21364344), (36, 17803620), (40, 16023258), (45, 14242896), (48, 13352715), (54, 11869080), (60, 10682172), (72, 8901810), (80, 8011629), (81, 7912720), (90, 7121448), (108, 5934540), (120, 5341086), (135, 4747632), (144, 4450905), (162, 3956360), (180, 3560724), (216, 2967270), (240, 2670543), (270, 2373816), (324, 1978180), (360, 1780362), (405, 1582544), (432, 1483635), (540, 1186908), (648, 989090), (720, 890181), (810, 791272), (1080, 593454), (1296, 494545), (1620, 395636), (2160, 296727), (3240, 197818), (6480, 98909)]