306787420

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{157}}^1\times {\mathrm{2383}}^1$

素因数の和:2590

約数の個数: 48

約数和(自身を含む): 664449408

約数和(自身を除く): 357661988

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 157, 164, 205, 314, 410, 628, 785, 820, 1570, 2383, 3140, 4766, 6437, 9532, 11915, 12874, 23830, 25748, 32185, 47660, 64370, 97703, 128740, 195406, 374131, 390812, 488515, 748262, 977030, 1496524, 1870655, 1954060, 3741310, 7482620, 15339371, 30678742, 61357484, 76696855, 153393710, 306787420]

約数ペア:

[(1, 306787420), (2, 153393710), (4, 76696855), (5, 61357484), (10, 30678742), (20, 15339371), (41, 7482620), (82, 3741310), (157, 1954060), (164, 1870655), (205, 1496524), (314, 977030), (410, 748262), (628, 488515), (785, 390812), (820, 374131), (1570, 195406), (2383, 128740), (3140, 97703), (4766, 64370), (6437, 47660), (9532, 32185), (11915, 25748), (12874, 23830)]