81042220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{30467}}^1$

素因数の和:30502

約数の個数: 48

約数和(自身を含む): 204744960

約数和(自身を除く): 123702740

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 133, 140, 190, 266, 380, 532, 665, 1330, 2660, 30467, 60934, 121868, 152335, 213269, 304670, 426538, 578873, 609340, 853076, 1066345, 1157746, 2132690, 2315492, 2894365, 4052111, 4265380, 5788730, 8104222, 11577460, 16208444, 20260555, 40521110, 81042220]

約数ペア:

[(1, 81042220), (2, 40521110), (4, 20260555), (5, 16208444), (7, 11577460), (10, 8104222), (14, 5788730), (19, 4265380), (20, 4052111), (28, 2894365), (35, 2315492), (38, 2132690), (70, 1157746), (76, 1066345), (95, 853076), (133, 609340), (140, 578873), (190, 426538), (266, 304670), (380, 213269), (532, 152335), (665, 121868), (1330, 60934), (2660, 30467)]