18213840

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{617}}^1$

素因数の和:677

約数の個数: 120

約数和(自身を含む): 62761608

約数和(自身を除く): 44547768

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 41, 45, 48, 60, 72, 80, 82, 90, 120, 123, 144, 164, 180, 205, 240, 246, 328, 360, 369, 410, 492, 615, 617, 656, 720, 738, 820, 984, 1230, 1234, 1476, 1640, 1845, 1851, 1968, 2460, 2468, 2952, 3085, 3280, 3690, 3702, 4920, 4936, 5553, 5904, 6170, 7380, 7404, 9255, 9840, 9872, 11106, 12340, 14760, 14808, 18510, 22212, 24680, 25297, 27765, 29520, 29616, 37020, 44424, 49360, 50594, 55530, 74040, 75891, 88848, 101188, 111060, 126485, 148080, 151782, 202376, 222120, 227673, 252970, 303564, 379455, 404752, 444240, 455346, 505940, 607128, 758910, 910692, 1011880, 1138365, 1214256, 1517820, 1821384, 2023760, 2276730, 3035640, 3642768, 4553460, 6071280, 9106920, 18213840]

約数ペア:

[(1, 18213840), (2, 9106920), (3, 6071280), (4, 4553460), (5, 3642768), (6, 3035640), (8, 2276730), (9, 2023760), (10, 1821384), (12, 1517820), (15, 1214256), (16, 1138365), (18, 1011880), (20, 910692), (24, 758910), (30, 607128), (36, 505940), (40, 455346), (41, 444240), (45, 404752), (48, 379455), (60, 303564), (72, 252970), (80, 227673), (82, 222120), (90, 202376), (120, 151782), (123, 148080), (144, 126485), (164, 111060), (180, 101188), (205, 88848), (240, 75891), (246, 74040), (328, 55530), (360, 50594), (369, 49360), (410, 44424), (492, 37020), (615, 29616), (617, 29520), (656, 27765), (720, 25297), (738, 24680), (820, 22212), (984, 18510), (1230, 14808), (1234, 14760), (1476, 12340), (1640, 11106), (1845, 9872), (1851, 9840), (1968, 9255), (2460, 7404), (2468, 7380), (2952, 6170), (3085, 5904), (3280, 5553), (3690, 4936), (3702, 4920)]