20639616

素因数分解:

$2^7\times 3^1\times {\mathrm{59}}^1\times {\mathrm{911}}^1$

素因数の和:987

約数の個数: 64

約数和(自身を含む): 55814400

約数和(自身を除く): 35174784

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 59, 64, 96, 118, 128, 177, 192, 236, 354, 384, 472, 708, 911, 944, 1416, 1822, 1888, 2733, 2832, 3644, 3776, 5466, 5664, 7288, 7552, 10932, 11328, 14576, 21864, 22656, 29152, 43728, 53749, 58304, 87456, 107498, 116608, 161247, 174912, 214996, 322494, 349824, 429992, 644988, 859984, 1289976, 1719968, 2579952, 3439936, 5159904, 6879872, 10319808, 20639616]

約数ペア:

[(1, 20639616), (2, 10319808), (3, 6879872), (4, 5159904), (6, 3439936), (8, 2579952), (12, 1719968), (16, 1289976), (24, 859984), (32, 644988), (48, 429992), (59, 349824), (64, 322494), (96, 214996), (118, 174912), (128, 161247), (177, 116608), (192, 107498), (236, 87456), (354, 58304), (384, 53749), (472, 43728), (708, 29152), (911, 22656), (944, 21864), (1416, 14576), (1822, 11328), (1888, 10932), (2733, 7552), (2832, 7288), (3644, 5664), (3776, 5466)]