28218690

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{241}}^1\times {\mathrm{1301}}^1$

素因数の和:1555

約数の個数: 48

約数和(自身を含む): 73729656

約数和(自身を除く): 45510966

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 241, 482, 723, 1205, 1301, 1446, 2169, 2410, 2602, 3615, 3903, 4338, 6505, 7230, 7806, 10845, 11709, 13010, 19515, 21690, 23418, 39030, 58545, 117090, 313541, 627082, 940623, 1567705, 1881246, 2821869, 3135410, 4703115, 5643738, 9406230, 14109345, 28218690]

約数ペア:

[(1, 28218690), (2, 14109345), (3, 9406230), (5, 5643738), (6, 4703115), (9, 3135410), (10, 2821869), (15, 1881246), (18, 1567705), (30, 940623), (45, 627082), (90, 313541), (241, 117090), (482, 58545), (723, 39030), (1205, 23418), (1301, 21690), (1446, 19515), (2169, 13010), (2410, 11709), (2602, 10845), (3615, 7806), (3903, 7230), (4338, 6505)]