1997845640

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{149}}^1\times {\mathrm{6841}}^1$

素因数の和:7015

約数の個数: 96

約数和(自身を含む): 5264919000

約数和(自身を除く): 3267073360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 149, 196, 245, 280, 298, 392, 490, 596, 745, 980, 1043, 1192, 1490, 1960, 2086, 2980, 4172, 5215, 5960, 6841, 7301, 8344, 10430, 13682, 14602, 20860, 27364, 29204, 34205, 36505, 41720, 47887, 54728, 58408, 68410, 73010, 95774, 136820, 146020, 191548, 239435, 273640, 292040, 335209, 383096, 478870, 670418, 957740, 1019309, 1340836, 1676045, 1915480, 2038618, 2681672, 3352090, 4077236, 5096545, 6704180, 7135163, 8154472, 10193090, 13408360, 14270326, 20386180, 28540652, 35675815, 40772360, 49946141, 57081304, 71351630, 99892282, 142703260, 199784564, 249730705, 285406520, 399569128, 499461410, 998922820, 1997845640]

約数ペア:

[(1, 1997845640), (2, 998922820), (4, 499461410), (5, 399569128), (7, 285406520), (8, 249730705), (10, 199784564), (14, 142703260), (20, 99892282), (28, 71351630), (35, 57081304), (40, 49946141), (49, 40772360), (56, 35675815), (70, 28540652), (98, 20386180), (140, 14270326), (149, 13408360), (196, 10193090), (245, 8154472), (280, 7135163), (298, 6704180), (392, 5096545), (490, 4077236), (596, 3352090), (745, 2681672), (980, 2038618), (1043, 1915480), (1192, 1676045), (1490, 1340836), (1960, 1019309), (2086, 957740), (2980, 670418), (4172, 478870), (5215, 383096), (5960, 335209), (6841, 292040), (7301, 273640), (8344, 239435), (10430, 191548), (13682, 146020), (14602, 136820), (20860, 95774), (27364, 73010), (29204, 68410), (34205, 58408), (36505, 54728), (41720, 47887)]