1818390640

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{401}}^1\times {\mathrm{5153}}^1$

素因数の和:5578

約数の個数: 80

約数和(自身を含む): 4624498656

約数和(自身を除く): 2806108016

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 401, 440, 802, 880, 1604, 2005, 3208, 4010, 4411, 5153, 6416, 8020, 8822, 10306, 16040, 17644, 20612, 22055, 25765, 32080, 35288, 41224, 44110, 51530, 56683, 70576, 82448, 88220, 103060, 113366, 176440, 206120, 226732, 283415, 352880, 412240, 453464, 566830, 906928, 1133660, 2066353, 2267320, 4132706, 4534640, 8265412, 10331765, 16530824, 20663530, 22729883, 33061648, 41327060, 45459766, 82654120, 90919532, 113649415, 165308240, 181839064, 227298830, 363678128, 454597660, 909195320, 1818390640]

約数ペア:

[(1, 1818390640), (2, 909195320), (4, 454597660), (5, 363678128), (8, 227298830), (10, 181839064), (11, 165308240), (16, 113649415), (20, 90919532), (22, 82654120), (40, 45459766), (44, 41327060), (55, 33061648), (80, 22729883), (88, 20663530), (110, 16530824), (176, 10331765), (220, 8265412), (401, 4534640), (440, 4132706), (802, 2267320), (880, 2066353), (1604, 1133660), (2005, 906928), (3208, 566830), (4010, 453464), (4411, 412240), (5153, 352880), (6416, 283415), (8020, 226732), (8822, 206120), (10306, 176440), (16040, 113366), (17644, 103060), (20612, 88220), (22055, 82448), (25765, 70576), (32080, 56683), (35288, 51530), (41224, 44110)]