31293280

素因数分解:

$2^5\times 5^1\times {\mathrm{131}}^1\times {\mathrm{1493}}^1$

素因数の和:1639

約数の個数: 48

約数和(自身を含む): 74544624

約数和(自身を除く): 43251344

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 131, 160, 262, 524, 655, 1048, 1310, 1493, 2096, 2620, 2986, 4192, 5240, 5972, 7465, 10480, 11944, 14930, 20960, 23888, 29860, 47776, 59720, 119440, 195583, 238880, 391166, 782332, 977915, 1564664, 1955830, 3129328, 3911660, 6258656, 7823320, 15646640, 31293280]

約数ペア:

[(1, 31293280), (2, 15646640), (4, 7823320), (5, 6258656), (8, 3911660), (10, 3129328), (16, 1955830), (20, 1564664), (32, 977915), (40, 782332), (80, 391166), (131, 238880), (160, 195583), (262, 119440), (524, 59720), (655, 47776), (1048, 29860), (1310, 23888), (1493, 20960), (2096, 14930), (2620, 11944), (2986, 10480), (4192, 7465), (5240, 5972)]