31780890

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{3797}}^1$

素因数の和:3844

約数の個数: 64

約数和(自身を含む): 87505920

約数和(自身を除く): 55725030

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 31, 45, 54, 62, 90, 93, 135, 155, 186, 270, 279, 310, 465, 558, 837, 930, 1395, 1674, 2790, 3797, 4185, 7594, 8370, 11391, 18985, 22782, 34173, 37970, 56955, 68346, 102519, 113910, 117707, 170865, 205038, 235414, 341730, 353121, 512595, 588535, 706242, 1025190, 1059363, 1177070, 1765605, 2118726, 3178089, 3531210, 5296815, 6356178, 10593630, 15890445, 31780890]

約数ペア:

[(1, 31780890), (2, 15890445), (3, 10593630), (5, 6356178), (6, 5296815), (9, 3531210), (10, 3178089), (15, 2118726), (18, 1765605), (27, 1177070), (30, 1059363), (31, 1025190), (45, 706242), (54, 588535), (62, 512595), (90, 353121), (93, 341730), (135, 235414), (155, 205038), (186, 170865), (270, 117707), (279, 113910), (310, 102519), (465, 68346), (558, 56955), (837, 37970), (930, 34173), (1395, 22782), (1674, 18985), (2790, 11391), (3797, 8370), (4185, 7594)]