38781980

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{101}}^1\times {\mathrm{263}}^1$

素因数の和:446

約数の個数: 48

約数和(自身を含む): 83692224

約数和(自身を除く): 44910244

約数列:

[1, 2, 4, 5, 10, 20, 73, 101, 146, 202, 263, 292, 365, 404, 505, 526, 730, 1010, 1052, 1315, 1460, 2020, 2630, 5260, 7373, 14746, 19199, 26563, 29492, 36865, 38398, 53126, 73730, 76796, 95995, 106252, 132815, 147460, 191990, 265630, 383980, 531260, 1939099, 3878198, 7756396, 9695495, 19390990, 38781980]

約数ペア:

[(1, 38781980), (2, 19390990), (4, 9695495), (5, 7756396), (10, 3878198), (20, 1939099), (73, 531260), (101, 383980), (146, 265630), (202, 191990), (263, 147460), (292, 132815), (365, 106252), (404, 95995), (505, 76796), (526, 73730), (730, 53126), (1010, 38398), (1052, 36865), (1315, 29492), (1460, 26563), (2020, 19199), (2630, 14746), (5260, 7373)]