665662720

素因数分解:

$2^8\times 5^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{271}}^1$

素因数の和:412

約数の個数: 144

約数和(自身を含む): 1701262080

約数和(自身を除く): 1035599360

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 101, 128, 152, 160, 190, 202, 256, 271, 304, 320, 380, 404, 505, 542, 608, 640, 760, 808, 1010, 1084, 1216, 1280, 1355, 1520, 1616, 1919, 2020, 2168, 2432, 2710, 3040, 3232, 3838, 4040, 4336, 4864, 5149, 5420, 6080, 6464, 7676, 8080, 8672, 9595, 10298, 10840, 12160, 12928, 15352, 16160, 17344, 19190, 20596, 21680, 24320, 25745, 25856, 27371, 30704, 32320, 34688, 38380, 41192, 43360, 51490, 54742, 61408, 64640, 69376, 76760, 82384, 86720, 102980, 109484, 122816, 129280, 136855, 153520, 164768, 173440, 205960, 218968, 245632, 273710, 307040, 329536, 346880, 411920, 437936, 491264, 520049, 547420, 614080, 659072, 823840, 875872, 1040098, 1094840, 1228160, 1318144, 1647680, 1751744, 2080196, 2189680, 2456320, 2600245, 3295360, 3503488, 4160392, 4379360, 5200490, 6590720, 7006976, 8320784, 8758720, 10400980, 16641568, 17517440, 20801960, 33283136, 35034880, 41603920, 66566272, 83207840, 133132544, 166415680, 332831360, 665662720]

約数ペア:

[(1, 665662720), (2, 332831360), (4, 166415680), (5, 133132544), (8, 83207840), (10, 66566272), (16, 41603920), (19, 35034880), (20, 33283136), (32, 20801960), (38, 17517440), (40, 16641568), (64, 10400980), (76, 8758720), (80, 8320784), (95, 7006976), (101, 6590720), (128, 5200490), (152, 4379360), (160, 4160392), (190, 3503488), (202, 3295360), (256, 2600245), (271, 2456320), (304, 2189680), (320, 2080196), (380, 1751744), (404, 1647680), (505, 1318144), (542, 1228160), (608, 1094840), (640, 1040098), (760, 875872), (808, 823840), (1010, 659072), (1084, 614080), (1216, 547420), (1280, 520049), (1355, 491264), (1520, 437936), (1616, 411920), (1919, 346880), (2020, 329536), (2168, 307040), (2432, 273710), (2710, 245632), (3040, 218968), (3232, 205960), (3838, 173440), (4040, 164768), (4336, 153520), (4864, 136855), (5149, 129280), (5420, 122816), (6080, 109484), (6464, 102980), (7676, 86720), (8080, 82384), (8672, 76760), (9595, 69376), (10298, 64640), (10840, 61408), (12160, 54742), (12928, 51490), (15352, 43360), (16160, 41192), (17344, 38380), (19190, 34688), (20596, 32320), (21680, 30704), (24320, 27371), (25745, 25856)]