31243240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{241}}^1\times {\mathrm{463}}^1$

素因数の和:722

約数の個数: 64

約数和(自身を含む): 80847360

約数和(自身を除く): 49604120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 241, 280, 463, 482, 926, 964, 1205, 1687, 1852, 1928, 2315, 2410, 3241, 3374, 3704, 4630, 4820, 6482, 6748, 8435, 9260, 9640, 12964, 13496, 16205, 16870, 18520, 25928, 32410, 33740, 64820, 67480, 111583, 129640, 223166, 446332, 557915, 781081, 892664, 1115830, 1562162, 2231660, 3124324, 3905405, 4463320, 6248648, 7810810, 15621620, 31243240]

約数ペア:

[(1, 31243240), (2, 15621620), (4, 7810810), (5, 6248648), (7, 4463320), (8, 3905405), (10, 3124324), (14, 2231660), (20, 1562162), (28, 1115830), (35, 892664), (40, 781081), (56, 557915), (70, 446332), (140, 223166), (241, 129640), (280, 111583), (463, 67480), (482, 64820), (926, 33740), (964, 32410), (1205, 25928), (1687, 18520), (1852, 16870), (1928, 16205), (2315, 13496), (2410, 12964), (3241, 9640), (3374, 9260), (3704, 8435), (4630, 6748), (4820, 6482)]