130181780

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{191}}^1\times {\mathrm{643}}^1$

素因数の和:896

約数の個数: 48

約数和(自身を含む): 280433664

約数和(自身を除く): 150251884

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 191, 212, 265, 382, 530, 643, 764, 955, 1060, 1286, 1910, 2572, 3215, 3820, 6430, 10123, 12860, 20246, 34079, 40492, 50615, 68158, 101230, 122813, 136316, 170395, 202460, 245626, 340790, 491252, 614065, 681580, 1228130, 2456260, 6509089, 13018178, 26036356, 32545445, 65090890, 130181780]

約数ペア:

[(1, 130181780), (2, 65090890), (4, 32545445), (5, 26036356), (10, 13018178), (20, 6509089), (53, 2456260), (106, 1228130), (191, 681580), (212, 614065), (265, 491252), (382, 340790), (530, 245626), (643, 202460), (764, 170395), (955, 136316), (1060, 122813), (1286, 101230), (1910, 68158), (2572, 50615), (3215, 40492), (3820, 34079), (6430, 20246), (10123, 12860)]