129821020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{349}}^1\times {\mathrm{2657}}^1$

素因数の和:3022

約数の個数: 48

約数和(自身を含む): 312580800

約数和(自身を除く): 182759780

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 349, 698, 1396, 1745, 2443, 2657, 3490, 4886, 5314, 6980, 9772, 10628, 12215, 13285, 18599, 24430, 26570, 37198, 48860, 53140, 74396, 92995, 185990, 371980, 927293, 1854586, 3709172, 4636465, 6491051, 9272930, 12982102, 18545860, 25964204, 32455255, 64910510, 129821020]

約数ペア:

[(1, 129821020), (2, 64910510), (4, 32455255), (5, 25964204), (7, 18545860), (10, 12982102), (14, 9272930), (20, 6491051), (28, 4636465), (35, 3709172), (70, 1854586), (140, 927293), (349, 371980), (698, 185990), (1396, 92995), (1745, 74396), (2443, 53140), (2657, 48860), (3490, 37198), (4886, 26570), (5314, 24430), (6980, 18599), (9772, 13285), (10628, 12215)]