18680220

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{887}}^1$

素因数の和:921

約数の個数: 120

約数和(自身を含む): 63179424

約数和(自身を除く): 44499204

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 27, 30, 36, 39, 45, 52, 54, 60, 65, 78, 81, 90, 108, 117, 130, 135, 156, 162, 180, 195, 234, 260, 270, 324, 351, 390, 405, 468, 540, 585, 702, 780, 810, 887, 1053, 1170, 1404, 1620, 1755, 1774, 2106, 2340, 2661, 3510, 3548, 4212, 4435, 5265, 5322, 7020, 7983, 8870, 10530, 10644, 11531, 13305, 15966, 17740, 21060, 23062, 23949, 26610, 31932, 34593, 39915, 46124, 47898, 53220, 57655, 69186, 71847, 79830, 95796, 103779, 115310, 119745, 138372, 143694, 159660, 172965, 207558, 230620, 239490, 287388, 311337, 345930, 359235, 415116, 478980, 518895, 622674, 691860, 718470, 934011, 1037790, 1245348, 1436940, 1556685, 1868022, 2075580, 3113370, 3736044, 4670055, 6226740, 9340110, 18680220]

約数ペア:

[(1, 18680220), (2, 9340110), (3, 6226740), (4, 4670055), (5, 3736044), (6, 3113370), (9, 2075580), (10, 1868022), (12, 1556685), (13, 1436940), (15, 1245348), (18, 1037790), (20, 934011), (26, 718470), (27, 691860), (30, 622674), (36, 518895), (39, 478980), (45, 415116), (52, 359235), (54, 345930), (60, 311337), (65, 287388), (78, 239490), (81, 230620), (90, 207558), (108, 172965), (117, 159660), (130, 143694), (135, 138372), (156, 119745), (162, 115310), (180, 103779), (195, 95796), (234, 79830), (260, 71847), (270, 69186), (324, 57655), (351, 53220), (390, 47898), (405, 46124), (468, 39915), (540, 34593), (585, 31932), (702, 26610), (780, 23949), (810, 23062), (887, 21060), (1053, 17740), (1170, 15966), (1404, 13305), (1620, 11531), (1755, 10644), (1774, 10530), (2106, 8870), (2340, 7983), (2661, 7020), (3510, 5322), (3548, 5265), (4212, 4435)]