78820275

素因数分解:

$3^1\times 5^2\times {\mathrm{53}}^1\times {\mathrm{79}}^1\times {\mathrm{251}}^1$

素因数の和:396

約数の個数: 48

約数和(自身を含む): 134991360

約数和(自身を除く): 56171085

約数列:

[1, 3, 5, 15, 25, 53, 75, 79, 159, 237, 251, 265, 395, 753, 795, 1185, 1255, 1325, 1975, 3765, 3975, 4187, 5925, 6275, 12561, 13303, 18825, 19829, 20935, 39909, 59487, 62805, 66515, 99145, 104675, 199545, 297435, 314025, 332575, 495725, 997725, 1050937, 1487175, 3152811, 5254685, 15764055, 26273425, 78820275]

約数ペア:

[(1, 78820275), (3, 26273425), (5, 15764055), (15, 5254685), (25, 3152811), (53, 1487175), (75, 1050937), (79, 997725), (159, 495725), (237, 332575), (251, 314025), (265, 297435), (395, 199545), (753, 104675), (795, 99145), (1185, 66515), (1255, 62805), (1325, 59487), (1975, 39909), (3765, 20935), (3975, 19829), (4187, 18825), (5925, 13303), (6275, 12561)]