127977880

素因数分解:

$2^3\times 5^1\times {\mathrm{773}}^1\times {\mathrm{4139}}^1$

素因数の和:4923

約数の個数: 32

約数和(自身を含む): 288392400

約数和(自身を除く): 160414520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 773, 1546, 3092, 3865, 4139, 6184, 7730, 8278, 15460, 16556, 20695, 30920, 33112, 41390, 82780, 165560, 3199447, 6398894, 12797788, 15997235, 25595576, 31994470, 63988940, 127977880]

約数ペア:

[(1, 127977880), (2, 63988940), (4, 31994470), (5, 25595576), (8, 15997235), (10, 12797788), (20, 6398894), (40, 3199447), (773, 165560), (1546, 82780), (3092, 41390), (3865, 33112), (4139, 30920), (6184, 20695), (7730, 16556), (8278, 15460)]