18225450

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{101}}^1\times {\mathrm{401}}^1$

素因数の和:520

約数の個数: 72

約数和(自身を含む): 49573836

約数和(自身を除く): 31348386

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 30, 45, 50, 75, 90, 101, 150, 202, 225, 303, 401, 450, 505, 606, 802, 909, 1010, 1203, 1515, 1818, 2005, 2406, 2525, 3030, 3609, 4010, 4545, 5050, 6015, 7218, 7575, 9090, 10025, 12030, 15150, 18045, 20050, 22725, 30075, 36090, 40501, 45450, 60150, 81002, 90225, 121503, 180450, 202505, 243006, 364509, 405010, 607515, 729018, 1012525, 1215030, 1822545, 2025050, 3037575, 3645090, 6075150, 9112725, 18225450]

約数ペア:

[(1, 18225450), (2, 9112725), (3, 6075150), (5, 3645090), (6, 3037575), (9, 2025050), (10, 1822545), (15, 1215030), (18, 1012525), (25, 729018), (30, 607515), (45, 405010), (50, 364509), (75, 243006), (90, 202505), (101, 180450), (150, 121503), (202, 90225), (225, 81002), (303, 60150), (401, 45450), (450, 40501), (505, 36090), (606, 30075), (802, 22725), (909, 20050), (1010, 18045), (1203, 15150), (1515, 12030), (1818, 10025), (2005, 9090), (2406, 7575), (2525, 7218), (3030, 6015), (3609, 5050), (4010, 4545)]