27720384140

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{401}}^1\times {\mathrm{111497}}^1$

素因数の和:111938

約数の個数: 48

約数和(自身を含む): 60241031424

約数和(自身を除く): 32520647284

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 401, 620, 802, 1604, 2005, 4010, 8020, 12431, 24862, 49724, 62155, 111497, 124310, 222994, 248620, 445988, 557485, 1114970, 2229940, 3456407, 6912814, 13825628, 17282035, 34564070, 44710297, 69128140, 89420594, 178841188, 223551485, 447102970, 894205940, 1386019207, 2772038414, 5544076828, 6930096035, 13860192070, 27720384140]

約数ペア:

[(1, 27720384140), (2, 13860192070), (4, 6930096035), (5, 5544076828), (10, 2772038414), (20, 1386019207), (31, 894205940), (62, 447102970), (124, 223551485), (155, 178841188), (310, 89420594), (401, 69128140), (620, 44710297), (802, 34564070), (1604, 17282035), (2005, 13825628), (4010, 6912814), (8020, 3456407), (12431, 2229940), (24862, 1114970), (49724, 557485), (62155, 445988), (111497, 248620), (124310, 222994)]