215795960

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{353}}^1$

素因数の和:441

約数の個数: 128

約数和(自身を含む): 550540800

約数和(自身を除く): 334744840

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 29, 31, 34, 40, 58, 62, 68, 85, 116, 124, 136, 145, 155, 170, 232, 248, 290, 310, 340, 353, 493, 527, 580, 620, 680, 706, 899, 986, 1054, 1160, 1240, 1412, 1765, 1798, 1972, 2108, 2465, 2635, 2824, 3530, 3596, 3944, 4216, 4495, 4930, 5270, 6001, 7060, 7192, 8990, 9860, 10237, 10540, 10943, 12002, 14120, 15283, 17980, 19720, 20474, 21080, 21886, 24004, 30005, 30566, 35960, 40948, 43772, 48008, 51185, 54715, 60010, 61132, 76415, 81896, 87544, 102370, 109430, 120020, 122264, 152830, 174029, 186031, 204740, 218860, 240040, 305660, 317347, 348058, 372062, 409480, 437720, 611320, 634694, 696116, 744124, 870145, 930155, 1269388, 1392232, 1488248, 1586735, 1740290, 1860310, 2538776, 3173470, 3480580, 3720620, 5394899, 6346940, 6961160, 7441240, 10789798, 12693880, 21579596, 26974495, 43159192, 53948990, 107897980, 215795960]

約数ペア:

[(1, 215795960), (2, 107897980), (4, 53948990), (5, 43159192), (8, 26974495), (10, 21579596), (17, 12693880), (20, 10789798), (29, 7441240), (31, 6961160), (34, 6346940), (40, 5394899), (58, 3720620), (62, 3480580), (68, 3173470), (85, 2538776), (116, 1860310), (124, 1740290), (136, 1586735), (145, 1488248), (155, 1392232), (170, 1269388), (232, 930155), (248, 870145), (290, 744124), (310, 696116), (340, 634694), (353, 611320), (493, 437720), (527, 409480), (580, 372062), (620, 348058), (680, 317347), (706, 305660), (899, 240040), (986, 218860), (1054, 204740), (1160, 186031), (1240, 174029), (1412, 152830), (1765, 122264), (1798, 120020), (1972, 109430), (2108, 102370), (2465, 87544), (2635, 81896), (2824, 76415), (3530, 61132), (3596, 60010), (3944, 54715), (4216, 51185), (4495, 48008), (4930, 43772), (5270, 40948), (6001, 35960), (7060, 30566), (7192, 30005), (8990, 24004), (9860, 21886), (10237, 21080), (10540, 20474), (10943, 19720), (12002, 17980), (14120, 15283)]