7281090

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{101}}^1$

素因数の和:209

約数の個数: 80

約数和(自身を含む): 19994040

約数和(自身を除く): 12712950

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 89, 90, 101, 135, 162, 178, 202, 267, 270, 303, 405, 445, 505, 534, 606, 801, 810, 890, 909, 1010, 1335, 1515, 1602, 1818, 2403, 2670, 2727, 3030, 4005, 4545, 4806, 5454, 7209, 8010, 8181, 8989, 9090, 12015, 13635, 14418, 16362, 17978, 24030, 26967, 27270, 36045, 40905, 44945, 53934, 72090, 80901, 81810, 89890, 134835, 161802, 242703, 269670, 404505, 485406, 728109, 809010, 1213515, 1456218, 2427030, 3640545, 7281090]

約数ペア:

[(1, 7281090), (2, 3640545), (3, 2427030), (5, 1456218), (6, 1213515), (9, 809010), (10, 728109), (15, 485406), (18, 404505), (27, 269670), (30, 242703), (45, 161802), (54, 134835), (81, 89890), (89, 81810), (90, 80901), (101, 72090), (135, 53934), (162, 44945), (178, 40905), (202, 36045), (267, 27270), (270, 26967), (303, 24030), (405, 17978), (445, 16362), (505, 14418), (534, 13635), (606, 12015), (801, 9090), (810, 8989), (890, 8181), (909, 8010), (1010, 7209), (1335, 5454), (1515, 4806), (1602, 4545), (1818, 4005), (2403, 3030), (2670, 2727)]