208675880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{829}}^1$

素因数の和:907

約数の個数: 128

約数和(自身を含む): 573696000

約数和(自身を除く): 365020120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 29, 31, 35, 40, 56, 58, 62, 70, 116, 124, 140, 145, 155, 203, 217, 232, 248, 280, 290, 310, 406, 434, 580, 620, 812, 829, 868, 899, 1015, 1085, 1160, 1240, 1624, 1658, 1736, 1798, 2030, 2170, 3316, 3596, 4060, 4145, 4340, 4495, 5803, 6293, 6632, 7192, 8120, 8290, 8680, 8990, 11606, 12586, 16580, 17980, 23212, 24041, 25172, 25699, 29015, 31465, 33160, 35960, 46424, 48082, 50344, 51398, 58030, 62930, 96164, 102796, 116060, 120205, 125860, 128495, 168287, 179893, 192328, 205592, 232120, 240410, 251720, 256990, 336574, 359786, 480820, 513980, 673148, 719572, 745271, 841435, 899465, 961640, 1027960, 1346296, 1439144, 1490542, 1682870, 1798930, 2981084, 3365740, 3597860, 3726355, 5216897, 5962168, 6731480, 7195720, 7452710, 10433794, 14905420, 20867588, 26084485, 29810840, 41735176, 52168970, 104337940, 208675880]

約数ペア:

[(1, 208675880), (2, 104337940), (4, 52168970), (5, 41735176), (7, 29810840), (8, 26084485), (10, 20867588), (14, 14905420), (20, 10433794), (28, 7452710), (29, 7195720), (31, 6731480), (35, 5962168), (40, 5216897), (56, 3726355), (58, 3597860), (62, 3365740), (70, 2981084), (116, 1798930), (124, 1682870), (140, 1490542), (145, 1439144), (155, 1346296), (203, 1027960), (217, 961640), (232, 899465), (248, 841435), (280, 745271), (290, 719572), (310, 673148), (406, 513980), (434, 480820), (580, 359786), (620, 336574), (812, 256990), (829, 251720), (868, 240410), (899, 232120), (1015, 205592), (1085, 192328), (1160, 179893), (1240, 168287), (1624, 128495), (1658, 125860), (1736, 120205), (1798, 116060), (2030, 102796), (2170, 96164), (3316, 62930), (3596, 58030), (4060, 51398), (4145, 50344), (4340, 48082), (4495, 46424), (5803, 35960), (6293, 33160), (6632, 31465), (7192, 29015), (8120, 25699), (8290, 25172), (8680, 24041), (8990, 23212), (11606, 17980), (12586, 16580)]