81745300

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{691}}^1$

素因数の和:738

約数の個数: 108

約数和(自身を含む): 219840096

約数和(自身を除く): 138094796

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 25, 26, 28, 35, 50, 52, 65, 70, 91, 100, 130, 140, 169, 175, 182, 260, 325, 338, 350, 364, 455, 650, 676, 691, 700, 845, 910, 1183, 1300, 1382, 1690, 1820, 2275, 2366, 2764, 3380, 3455, 4225, 4550, 4732, 4837, 5915, 6910, 8450, 8983, 9100, 9674, 11830, 13820, 16900, 17275, 17966, 19348, 23660, 24185, 29575, 34550, 35932, 44915, 48370, 59150, 62881, 69100, 89830, 96740, 116779, 118300, 120925, 125762, 179660, 224575, 233558, 241850, 251524, 314405, 449150, 467116, 483700, 583895, 628810, 817453, 898300, 1167790, 1257620, 1572025, 1634906, 2335580, 2919475, 3144050, 3269812, 4087265, 5838950, 6288100, 8174530, 11677900, 16349060, 20436325, 40872650, 81745300]

約数ペア:

[(1, 81745300), (2, 40872650), (4, 20436325), (5, 16349060), (7, 11677900), (10, 8174530), (13, 6288100), (14, 5838950), (20, 4087265), (25, 3269812), (26, 3144050), (28, 2919475), (35, 2335580), (50, 1634906), (52, 1572025), (65, 1257620), (70, 1167790), (91, 898300), (100, 817453), (130, 628810), (140, 583895), (169, 483700), (175, 467116), (182, 449150), (260, 314405), (325, 251524), (338, 241850), (350, 233558), (364, 224575), (455, 179660), (650, 125762), (676, 120925), (691, 118300), (700, 116779), (845, 96740), (910, 89830), (1183, 69100), (1300, 62881), (1382, 59150), (1690, 48370), (1820, 44915), (2275, 35932), (2366, 34550), (2764, 29575), (3380, 24185), (3455, 23660), (4225, 19348), (4550, 17966), (4732, 17275), (4837, 16900), (5915, 13820), (6910, 11830), (8450, 9674), (8983, 9100)]