21091376360

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{491}}^1\times {\mathrm{1949}}^1$

素因数の和:2499

約数の個数: 128

約数和(自身を含む): 51807600000

約数和(自身を除く): 30716223640

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 29, 38, 40, 58, 76, 95, 116, 145, 152, 190, 232, 290, 380, 491, 551, 580, 760, 982, 1102, 1160, 1949, 1964, 2204, 2455, 2755, 3898, 3928, 4408, 4910, 5510, 7796, 9329, 9745, 9820, 11020, 14239, 15592, 18658, 19490, 19640, 22040, 28478, 37031, 37316, 38980, 46645, 56521, 56956, 71195, 74062, 74632, 77960, 93290, 113042, 113912, 142390, 148124, 185155, 186580, 226084, 270541, 282605, 284780, 296248, 370310, 373160, 452168, 541082, 565210, 569560, 740620, 956959, 1073899, 1082164, 1130420, 1352705, 1481240, 1913918, 2147798, 2164328, 2260840, 2705410, 3827836, 4295596, 4784795, 5369495, 5410820, 7655672, 8591192, 9569590, 10738990, 10821640, 18182221, 19139180, 21477980, 27751811, 36364442, 38278360, 42955960, 55503622, 72728884, 90911105, 111007244, 138759055, 145457768, 181822210, 222014488, 277518110, 363644420, 527284409, 555036220, 727288840, 1054568818, 1110072440, 2109137636, 2636422045, 4218275272, 5272844090, 10545688180, 21091376360]

約数ペア:

[(1, 21091376360), (2, 10545688180), (4, 5272844090), (5, 4218275272), (8, 2636422045), (10, 2109137636), (19, 1110072440), (20, 1054568818), (29, 727288840), (38, 555036220), (40, 527284409), (58, 363644420), (76, 277518110), (95, 222014488), (116, 181822210), (145, 145457768), (152, 138759055), (190, 111007244), (232, 90911105), (290, 72728884), (380, 55503622), (491, 42955960), (551, 38278360), (580, 36364442), (760, 27751811), (982, 21477980), (1102, 19139180), (1160, 18182221), (1949, 10821640), (1964, 10738990), (2204, 9569590), (2455, 8591192), (2755, 7655672), (3898, 5410820), (3928, 5369495), (4408, 4784795), (4910, 4295596), (5510, 3827836), (7796, 2705410), (9329, 2260840), (9745, 2164328), (9820, 2147798), (11020, 1913918), (14239, 1481240), (15592, 1352705), (18658, 1130420), (19490, 1082164), (19640, 1073899), (22040, 956959), (28478, 740620), (37031, 569560), (37316, 565210), (38980, 541082), (46645, 452168), (56521, 373160), (56956, 370310), (71195, 296248), (74062, 284780), (74632, 282605), (77960, 270541), (93290, 226084), (113042, 186580), (113912, 185155), (142390, 148124)]