30706780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{1327}}^1$

素因数の和:1438

約数の個数: 48

約数和(自身を含む): 70277760

約数和(自身を除く): 39570980

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 89, 130, 178, 260, 356, 445, 890, 1157, 1327, 1780, 2314, 2654, 4628, 5308, 5785, 6635, 11570, 13270, 17251, 23140, 26540, 34502, 69004, 86255, 118103, 172510, 236206, 345020, 472412, 590515, 1181030, 1535339, 2362060, 3070678, 6141356, 7676695, 15353390, 30706780]

約数ペア:

[(1, 30706780), (2, 15353390), (4, 7676695), (5, 6141356), (10, 3070678), (13, 2362060), (20, 1535339), (26, 1181030), (52, 590515), (65, 472412), (89, 345020), (130, 236206), (178, 172510), (260, 118103), (356, 86255), (445, 69004), (890, 34502), (1157, 26540), (1327, 23140), (1780, 17251), (2314, 13270), (2654, 11570), (4628, 6635), (5308, 5785)]