61001840

素因数分解:

$2^4\times 5^1\times {\mathrm{491}}^1\times {\mathrm{1553}}^1$

素因数の和:2057

約数の個数: 40

約数和(自身を含む): 142209648

約数和(自身を除く): 81207808

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 491, 982, 1553, 1964, 2455, 3106, 3928, 4910, 6212, 7765, 7856, 9820, 12424, 15530, 19640, 24848, 31060, 39280, 62120, 124240, 762523, 1525046, 3050092, 3812615, 6100184, 7625230, 12200368, 15250460, 30500920, 61001840]

約数ペア:

[(1, 61001840), (2, 30500920), (4, 15250460), (5, 12200368), (8, 7625230), (10, 6100184), (16, 3812615), (20, 3050092), (40, 1525046), (80, 762523), (491, 124240), (982, 62120), (1553, 39280), (1964, 31060), (2455, 24848), (3106, 19640), (3928, 15530), (4910, 12424), (6212, 9820), (7765, 7856)]