78948040

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{1423}}^1$

素因数の和:1526

約数の個数: 64

約数和(自身を含む): 189676800

約数和(自身を除く): 110728760

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 73, 76, 95, 146, 152, 190, 292, 365, 380, 584, 730, 760, 1387, 1423, 1460, 2774, 2846, 2920, 5548, 5692, 6935, 7115, 11096, 11384, 13870, 14230, 27037, 27740, 28460, 54074, 55480, 56920, 103879, 108148, 135185, 207758, 216296, 270370, 415516, 519395, 540740, 831032, 1038790, 1081480, 1973701, 2077580, 3947402, 4155160, 7894804, 9868505, 15789608, 19737010, 39474020, 78948040]

約数ペア:

[(1, 78948040), (2, 39474020), (4, 19737010), (5, 15789608), (8, 9868505), (10, 7894804), (19, 4155160), (20, 3947402), (38, 2077580), (40, 1973701), (73, 1081480), (76, 1038790), (95, 831032), (146, 540740), (152, 519395), (190, 415516), (292, 270370), (365, 216296), (380, 207758), (584, 135185), (730, 108148), (760, 103879), (1387, 56920), (1423, 55480), (1460, 54074), (2774, 28460), (2846, 27740), (2920, 27037), (5548, 14230), (5692, 13870), (6935, 11384), (7115, 11096)]