80782020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{3709}}^1$

素因数の和:3746

約数の個数: 108

約数和(自身を含む): 269412780

約数和(自身を除く): 188630760

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 121, 132, 165, 180, 198, 220, 242, 330, 363, 396, 484, 495, 605, 660, 726, 990, 1089, 1210, 1452, 1815, 1980, 2178, 2420, 3630, 3709, 4356, 5445, 7260, 7418, 10890, 11127, 14836, 18545, 21780, 22254, 33381, 37090, 40799, 44508, 55635, 66762, 74180, 81598, 111270, 122397, 133524, 163196, 166905, 203995, 222540, 244794, 333810, 367191, 407990, 448789, 489588, 611985, 667620, 734382, 815980, 897578, 1223970, 1346367, 1468764, 1795156, 1835955, 2243945, 2447940, 2692734, 3671910, 4039101, 4487890, 5385468, 6731835, 7343820, 8078202, 8975780, 13463670, 16156404, 20195505, 26927340, 40391010, 80782020]

約数ペア:

[(1, 80782020), (2, 40391010), (3, 26927340), (4, 20195505), (5, 16156404), (6, 13463670), (9, 8975780), (10, 8078202), (11, 7343820), (12, 6731835), (15, 5385468), (18, 4487890), (20, 4039101), (22, 3671910), (30, 2692734), (33, 2447940), (36, 2243945), (44, 1835955), (45, 1795156), (55, 1468764), (60, 1346367), (66, 1223970), (90, 897578), (99, 815980), (110, 734382), (121, 667620), (132, 611985), (165, 489588), (180, 448789), (198, 407990), (220, 367191), (242, 333810), (330, 244794), (363, 222540), (396, 203995), (484, 166905), (495, 163196), (605, 133524), (660, 122397), (726, 111270), (990, 81598), (1089, 74180), (1210, 66762), (1452, 55635), (1815, 44508), (1980, 40799), (2178, 37090), (2420, 33381), (3630, 22254), (3709, 21780), (4356, 18545), (5445, 14836), (7260, 11127), (7418, 10890)]