12972940

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{373}}^1$

素因数の和:466

約数の個数: 48

約数和(自身を含む): 28651392

約数和(自身を除く): 15678452

約数列:

[1, 2, 4, 5, 10, 20, 37, 47, 74, 94, 148, 185, 188, 235, 370, 373, 470, 740, 746, 940, 1492, 1739, 1865, 3478, 3730, 6956, 7460, 8695, 13801, 17390, 17531, 27602, 34780, 35062, 55204, 69005, 70124, 87655, 138010, 175310, 276020, 350620, 648647, 1297294, 2594588, 3243235, 6486470, 12972940]

約数ペア:

[(1, 12972940), (2, 6486470), (4, 3243235), (5, 2594588), (10, 1297294), (20, 648647), (37, 350620), (47, 276020), (74, 175310), (94, 138010), (148, 87655), (185, 70124), (188, 69005), (235, 55204), (370, 35062), (373, 34780), (470, 27602), (740, 17531), (746, 17390), (940, 13801), (1492, 8695), (1739, 7460), (1865, 6956), (3478, 3730)]