20381490

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{137}}^1$

素因数の和:201

約数の個数: 128

約数和(自身を含む): 59616000

約数和(自身を除く): 39234510

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 19, 27, 29, 30, 38, 45, 54, 57, 58, 87, 90, 95, 114, 135, 137, 145, 171, 174, 190, 261, 270, 274, 285, 290, 342, 411, 435, 513, 522, 551, 570, 685, 783, 822, 855, 870, 1026, 1102, 1233, 1305, 1370, 1566, 1653, 1710, 2055, 2466, 2565, 2603, 2610, 2755, 3306, 3699, 3915, 3973, 4110, 4959, 5130, 5206, 5510, 6165, 7398, 7809, 7830, 7946, 8265, 9918, 11919, 12330, 13015, 14877, 15618, 16530, 18495, 19865, 23427, 23838, 24795, 26030, 29754, 35757, 36990, 39045, 39730, 46854, 49590, 59595, 70281, 71514, 74385, 75487, 78090, 107271, 117135, 119190, 140562, 148770, 150974, 178785, 214542, 226461, 234270, 351405, 357570, 377435, 452922, 536355, 679383, 702810, 754870, 1072710, 1132305, 1358766, 2038149, 2264610, 3396915, 4076298, 6793830, 10190745, 20381490]

約数ペア:

[(1, 20381490), (2, 10190745), (3, 6793830), (5, 4076298), (6, 3396915), (9, 2264610), (10, 2038149), (15, 1358766), (18, 1132305), (19, 1072710), (27, 754870), (29, 702810), (30, 679383), (38, 536355), (45, 452922), (54, 377435), (57, 357570), (58, 351405), (87, 234270), (90, 226461), (95, 214542), (114, 178785), (135, 150974), (137, 148770), (145, 140562), (171, 119190), (174, 117135), (190, 107271), (261, 78090), (270, 75487), (274, 74385), (285, 71514), (290, 70281), (342, 59595), (411, 49590), (435, 46854), (513, 39730), (522, 39045), (551, 36990), (570, 35757), (685, 29754), (783, 26030), (822, 24795), (855, 23838), (870, 23427), (1026, 19865), (1102, 18495), (1233, 16530), (1305, 15618), (1370, 14877), (1566, 13015), (1653, 12330), (1710, 11919), (2055, 9918), (2466, 8265), (2565, 7946), (2603, 7830), (2610, 7809), (2755, 7398), (3306, 6165), (3699, 5510), (3915, 5206), (3973, 5130), (4110, 4959)]