25678980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{331}}^1\times {\mathrm{431}}^1$

素因数の和:777

約数の個数: 72

約数和(自身を含む): 78309504

約数和(自身を除く): 52630524

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 331, 431, 662, 862, 993, 1293, 1324, 1655, 1724, 1986, 2155, 2586, 2979, 3310, 3879, 3972, 4310, 4965, 5172, 5958, 6465, 6620, 7758, 8620, 9930, 11916, 12930, 14895, 15516, 19395, 19860, 25860, 29790, 38790, 59580, 77580, 142661, 285322, 427983, 570644, 713305, 855966, 1283949, 1426610, 1711932, 2139915, 2567898, 2853220, 4279830, 5135796, 6419745, 8559660, 12839490, 25678980]

約数ペア:

[(1, 25678980), (2, 12839490), (3, 8559660), (4, 6419745), (5, 5135796), (6, 4279830), (9, 2853220), (10, 2567898), (12, 2139915), (15, 1711932), (18, 1426610), (20, 1283949), (30, 855966), (36, 713305), (45, 570644), (60, 427983), (90, 285322), (180, 142661), (331, 77580), (431, 59580), (662, 38790), (862, 29790), (993, 25860), (1293, 19860), (1324, 19395), (1655, 15516), (1724, 14895), (1986, 12930), (2155, 11916), (2586, 9930), (2979, 8620), (3310, 7758), (3879, 6620), (3972, 6465), (4310, 5958), (4965, 5172)]