12978675

素因数分解:

$3^2\times 5^2\times {\mathrm{37}}^1\times {\mathrm{1559}}^1$

素因数の和:1612

約数の個数: 36

約数和(自身を含む): 23889840

約数和(自身を除く): 10911165

約数列:

[1, 3, 5, 9, 15, 25, 37, 45, 75, 111, 185, 225, 333, 555, 925, 1559, 1665, 2775, 4677, 7795, 8325, 14031, 23385, 38975, 57683, 70155, 116925, 173049, 288415, 350775, 519147, 865245, 1442075, 2595735, 4326225, 12978675]

約数ペア:

[(1, 12978675), (3, 4326225), (5, 2595735), (9, 1442075), (15, 865245), (25, 519147), (37, 350775), (45, 288415), (75, 173049), (111, 116925), (185, 70155), (225, 57683), (333, 38975), (555, 23385), (925, 14031), (1559, 8325), (1665, 7795), (2775, 4677)]