8180900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1$

素因数の和:94

約数の個数: 144

約数和(自身を含む): 23331840

約数和(自身を除く): 15150940

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 25, 26, 28, 29, 31, 35, 50, 52, 58, 62, 65, 70, 91, 100, 116, 124, 130, 140, 145, 155, 175, 182, 203, 217, 260, 290, 310, 325, 350, 364, 377, 403, 406, 434, 455, 580, 620, 650, 700, 725, 754, 775, 806, 812, 868, 899, 910, 1015, 1085, 1300, 1450, 1508, 1550, 1612, 1798, 1820, 1885, 2015, 2030, 2170, 2275, 2639, 2821, 2900, 3100, 3596, 3770, 4030, 4060, 4340, 4495, 4550, 5075, 5278, 5425, 5642, 6293, 7540, 8060, 8990, 9100, 9425, 10075, 10150, 10556, 10850, 11284, 11687, 12586, 13195, 14105, 17980, 18850, 20150, 20300, 21700, 22475, 23374, 25172, 26390, 28210, 31465, 37700, 40300, 44950, 46748, 52780, 56420, 58435, 62930, 65975, 70525, 81809, 89900, 116870, 125860, 131950, 141050, 157325, 163618, 233740, 263900, 282100, 292175, 314650, 327236, 409045, 584350, 629300, 818090, 1168700, 1636180, 2045225, 4090450, 8180900]

約数ペア:

[(1, 8180900), (2, 4090450), (4, 2045225), (5, 1636180), (7, 1168700), (10, 818090), (13, 629300), (14, 584350), (20, 409045), (25, 327236), (26, 314650), (28, 292175), (29, 282100), (31, 263900), (35, 233740), (50, 163618), (52, 157325), (58, 141050), (62, 131950), (65, 125860), (70, 116870), (91, 89900), (100, 81809), (116, 70525), (124, 65975), (130, 62930), (140, 58435), (145, 56420), (155, 52780), (175, 46748), (182, 44950), (203, 40300), (217, 37700), (260, 31465), (290, 28210), (310, 26390), (325, 25172), (350, 23374), (364, 22475), (377, 21700), (403, 20300), (406, 20150), (434, 18850), (455, 17980), (580, 14105), (620, 13195), (650, 12586), (700, 11687), (725, 11284), (754, 10850), (775, 10556), (806, 10150), (812, 10075), (868, 9425), (899, 9100), (910, 8990), (1015, 8060), (1085, 7540), (1300, 6293), (1450, 5642), (1508, 5425), (1550, 5278), (1612, 5075), (1798, 4550), (1820, 4495), (1885, 4340), (2015, 4060), (2030, 4030), (2170, 3770), (2275, 3596), (2639, 3100), (2821, 2900)]