28377990

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{4441}}^1$

素因数の和:4525

約数の個数: 48

約数和(自身を含む): 74838816

約数和(自身を除く): 46460826

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 71, 90, 142, 213, 355, 426, 639, 710, 1065, 1278, 2130, 3195, 4441, 6390, 8882, 13323, 22205, 26646, 39969, 44410, 66615, 79938, 133230, 199845, 315311, 399690, 630622, 945933, 1576555, 1891866, 2837799, 3153110, 4729665, 5675598, 9459330, 14188995, 28377990]

約数ペア:

[(1, 28377990), (2, 14188995), (3, 9459330), (5, 5675598), (6, 4729665), (9, 3153110), (10, 2837799), (15, 1891866), (18, 1576555), (30, 945933), (45, 630622), (71, 399690), (90, 315311), (142, 199845), (213, 133230), (355, 79938), (426, 66615), (639, 44410), (710, 39969), (1065, 26646), (1278, 22205), (2130, 13323), (3195, 8882), (4441, 6390)]