20917366870

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{137}}^1\times {\mathrm{4603}}^1$

素因数の和:4885

約数の個数: 64

約数和(自身を含む): 39523977216

約数和(自身を除く): 18606610346

約数列:

[1, 2, 5, 10, 31, 62, 107, 137, 155, 214, 274, 310, 535, 685, 1070, 1370, 3317, 4247, 4603, 6634, 8494, 9206, 14659, 16585, 21235, 23015, 29318, 33170, 42470, 46030, 73295, 142693, 146590, 285386, 454429, 492521, 630611, 713465, 908858, 985042, 1261222, 1426930, 2272145, 2462605, 3153055, 4544290, 4925210, 6306110, 15268151, 19548941, 30536302, 39097882, 67475377, 76340755, 97744705, 134950754, 152681510, 195489410, 337376885, 674753770, 2091736687, 4183473374, 10458683435, 20917366870]

約数ペア:

[(1, 20917366870), (2, 10458683435), (5, 4183473374), (10, 2091736687), (31, 674753770), (62, 337376885), (107, 195489410), (137, 152681510), (155, 134950754), (214, 97744705), (274, 76340755), (310, 67475377), (535, 39097882), (685, 30536302), (1070, 19548941), (1370, 15268151), (3317, 6306110), (4247, 4925210), (4603, 4544290), (6634, 3153055), (8494, 2462605), (9206, 2272145), (14659, 1426930), (16585, 1261222), (21235, 985042), (23015, 908858), (29318, 713465), (33170, 630611), (42470, 492521), (46030, 454429), (73295, 285386), (142693, 146590)]