212863970

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{1279}}^1$

素因数の和:1403

約数の個数: 64

約数和(自身を含む): 447897600

約数和(自身を除く): 235033630

約数列:

[1, 2, 5, 10, 11, 17, 22, 34, 55, 85, 89, 110, 170, 178, 187, 374, 445, 890, 935, 979, 1279, 1513, 1870, 1958, 2558, 3026, 4895, 6395, 7565, 9790, 12790, 14069, 15130, 16643, 21743, 28138, 33286, 43486, 70345, 83215, 108715, 113831, 140690, 166430, 217430, 227662, 239173, 478346, 569155, 1138310, 1195865, 1252141, 1935127, 2391730, 2504282, 3870254, 6260705, 9675635, 12521410, 19351270, 21286397, 42572794, 106431985, 212863970]

約数ペア:

[(1, 212863970), (2, 106431985), (5, 42572794), (10, 21286397), (11, 19351270), (17, 12521410), (22, 9675635), (34, 6260705), (55, 3870254), (85, 2504282), (89, 2391730), (110, 1935127), (170, 1252141), (178, 1195865), (187, 1138310), (374, 569155), (445, 478346), (890, 239173), (935, 227662), (979, 217430), (1279, 166430), (1513, 140690), (1870, 113831), (1958, 108715), (2558, 83215), (3026, 70345), (4895, 43486), (6395, 33286), (7565, 28138), (9790, 21743), (12790, 16643), (14069, 15130)]