278324920

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{366217}}^1$

素因数の和:366247

約数の個数: 32

約数和(自身を含む): 659192400

約数和(自身を除く): 380867480

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 366217, 732434, 1464868, 1831085, 2929736, 3662170, 6958123, 7324340, 13916246, 14648680, 27832492, 34790615, 55664984, 69581230, 139162460, 278324920]

約数ペア:

[(1, 278324920), (2, 139162460), (4, 69581230), (5, 55664984), (8, 34790615), (10, 27832492), (19, 14648680), (20, 13916246), (38, 7324340), (40, 6958123), (76, 3662170), (95, 2929736), (152, 1831085), (190, 1464868), (380, 732434), (760, 366217)]