405789720

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{4783}}^1$

素因数の和:4905

約数の個数: 128

約数和(自身を含む): 1405347840

約数和(自身を除く): 999558120

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 101, 105, 120, 140, 168, 202, 210, 280, 303, 404, 420, 505, 606, 707, 808, 840, 1010, 1212, 1414, 1515, 2020, 2121, 2424, 2828, 3030, 3535, 4040, 4242, 4783, 5656, 6060, 7070, 8484, 9566, 10605, 12120, 14140, 14349, 16968, 19132, 21210, 23915, 28280, 28698, 33481, 38264, 42420, 47830, 57396, 66962, 71745, 84840, 95660, 100443, 114792, 133924, 143490, 167405, 191320, 200886, 267848, 286980, 334810, 401772, 483083, 502215, 573960, 669620, 803544, 966166, 1004430, 1339240, 1449249, 1932332, 2008860, 2415415, 2898498, 3381581, 3864664, 4017720, 4830830, 5796996, 6763162, 7246245, 9661660, 10144743, 11593992, 13526324, 14492490, 16907905, 19323320, 20289486, 27052648, 28984980, 33815810, 40578972, 50723715, 57969960, 67631620, 81157944, 101447430, 135263240, 202894860, 405789720]

約数ペア:

[(1, 405789720), (2, 202894860), (3, 135263240), (4, 101447430), (5, 81157944), (6, 67631620), (7, 57969960), (8, 50723715), (10, 40578972), (12, 33815810), (14, 28984980), (15, 27052648), (20, 20289486), (21, 19323320), (24, 16907905), (28, 14492490), (30, 13526324), (35, 11593992), (40, 10144743), (42, 9661660), (56, 7246245), (60, 6763162), (70, 5796996), (84, 4830830), (101, 4017720), (105, 3864664), (120, 3381581), (140, 2898498), (168, 2415415), (202, 2008860), (210, 1932332), (280, 1449249), (303, 1339240), (404, 1004430), (420, 966166), (505, 803544), (606, 669620), (707, 573960), (808, 502215), (840, 483083), (1010, 401772), (1212, 334810), (1414, 286980), (1515, 267848), (2020, 200886), (2121, 191320), (2424, 167405), (2828, 143490), (3030, 133924), (3535, 114792), (4040, 100443), (4242, 95660), (4783, 84840), (5656, 71745), (6060, 66962), (7070, 57396), (8484, 47830), (9566, 42420), (10605, 38264), (12120, 33481), (14140, 28698), (14349, 28280), (16968, 23915), (19132, 21210)]