9780390

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{271}}^1\times {\mathrm{401}}^1$

素因数の和:685

約数の個数: 48

約数和(自身を含む): 25586496

約数和(自身を除く): 15806106

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 271, 401, 542, 802, 813, 1203, 1355, 1626, 2005, 2406, 2439, 2710, 3609, 4010, 4065, 4878, 6015, 7218, 8130, 12030, 12195, 18045, 24390, 36090, 108671, 217342, 326013, 543355, 652026, 978039, 1086710, 1630065, 1956078, 3260130, 4890195, 9780390]

約数ペア:

[(1, 9780390), (2, 4890195), (3, 3260130), (5, 1956078), (6, 1630065), (9, 1086710), (10, 978039), (15, 652026), (18, 543355), (30, 326013), (45, 217342), (90, 108671), (271, 36090), (401, 24390), (542, 18045), (802, 12195), (813, 12030), (1203, 8130), (1355, 7218), (1626, 6015), (2005, 4878), (2406, 4065), (2439, 4010), (2710, 3609)]