1989545280

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{66853}}^1$

素因数の和:66904

約数の個数: 112

約数和(自身を含む): 6520671744

約数和(自身を除く): 4531126464

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 32, 40, 48, 60, 62, 64, 80, 93, 96, 120, 124, 155, 160, 186, 192, 240, 248, 310, 320, 372, 465, 480, 496, 620, 744, 930, 960, 992, 1240, 1488, 1860, 1984, 2480, 2976, 3720, 4960, 5952, 7440, 9920, 14880, 29760, 66853, 133706, 200559, 267412, 334265, 401118, 534824, 668530, 802236, 1002795, 1069648, 1337060, 1604472, 2005590, 2072443, 2139296, 2674120, 3208944, 4011180, 4144886, 4278592, 5348240, 6217329, 6417888, 8022360, 8289772, 10362215, 10696480, 12434658, 12835776, 16044720, 16579544, 20724430, 21392960, 24869316, 31086645, 32089440, 33159088, 41448860, 49738632, 62173290, 64178880, 66318176, 82897720, 99477264, 124346580, 132636352, 165795440, 198954528, 248693160, 331590880, 397909056, 497386320, 663181760, 994772640, 1989545280]

約数ペア:

[(1, 1989545280), (2, 994772640), (3, 663181760), (4, 497386320), (5, 397909056), (6, 331590880), (8, 248693160), (10, 198954528), (12, 165795440), (15, 132636352), (16, 124346580), (20, 99477264), (24, 82897720), (30, 66318176), (31, 64178880), (32, 62173290), (40, 49738632), (48, 41448860), (60, 33159088), (62, 32089440), (64, 31086645), (80, 24869316), (93, 21392960), (96, 20724430), (120, 16579544), (124, 16044720), (155, 12835776), (160, 12434658), (186, 10696480), (192, 10362215), (240, 8289772), (248, 8022360), (310, 6417888), (320, 6217329), (372, 5348240), (465, 4278592), (480, 4144886), (496, 4011180), (620, 3208944), (744, 2674120), (930, 2139296), (960, 2072443), (992, 2005590), (1240, 1604472), (1488, 1337060), (1860, 1069648), (1984, 1002795), (2480, 802236), (2976, 668530), (3720, 534824), (4960, 401118), (5952, 334265), (7440, 267412), (9920, 200559), (14880, 133706), (29760, 66853)]