81427590

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{283}}^1$

素因数の和:458

約数の個数: 96

約数和(自身を含む): 223292160

約数和(自身を除く): 141864570

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 23, 30, 45, 46, 69, 90, 115, 138, 139, 207, 230, 278, 283, 345, 414, 417, 566, 690, 695, 834, 849, 1035, 1251, 1390, 1415, 1698, 2070, 2085, 2502, 2547, 2830, 3197, 4170, 4245, 5094, 6255, 6394, 6509, 8490, 9591, 12510, 12735, 13018, 15985, 19182, 19527, 25470, 28773, 31970, 32545, 39054, 39337, 47955, 57546, 58581, 65090, 78674, 95910, 97635, 117162, 118011, 143865, 195270, 196685, 236022, 287730, 292905, 354033, 393370, 585810, 590055, 708066, 904751, 1180110, 1770165, 1809502, 2714253, 3540330, 4523755, 5428506, 8142759, 9047510, 13571265, 16285518, 27142530, 40713795, 81427590]

約数ペア:

[(1, 81427590), (2, 40713795), (3, 27142530), (5, 16285518), (6, 13571265), (9, 9047510), (10, 8142759), (15, 5428506), (18, 4523755), (23, 3540330), (30, 2714253), (45, 1809502), (46, 1770165), (69, 1180110), (90, 904751), (115, 708066), (138, 590055), (139, 585810), (207, 393370), (230, 354033), (278, 292905), (283, 287730), (345, 236022), (414, 196685), (417, 195270), (566, 143865), (690, 118011), (695, 117162), (834, 97635), (849, 95910), (1035, 78674), (1251, 65090), (1390, 58581), (1415, 57546), (1698, 47955), (2070, 39337), (2085, 39054), (2502, 32545), (2547, 31970), (2830, 28773), (3197, 25470), (4170, 19527), (4245, 19182), (5094, 15985), (6255, 13018), (6394, 12735), (6509, 12510), (8490, 9591)]