81205150

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{271}}^1\times {\mathrm{461}}^1$

素因数の和:757

約数の個数: 48

約数和(自身を含む): 163614528

約数和(自身を除く): 82409378

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 271, 325, 461, 542, 650, 922, 1355, 2305, 2710, 3523, 4610, 5993, 6775, 7046, 11525, 11986, 13550, 17615, 23050, 29965, 35230, 59930, 88075, 124931, 149825, 176150, 249862, 299650, 624655, 1249310, 1624103, 3123275, 3248206, 6246550, 8120515, 16241030, 40602575, 81205150]

約数ペア:

[(1, 81205150), (2, 40602575), (5, 16241030), (10, 8120515), (13, 6246550), (25, 3248206), (26, 3123275), (50, 1624103), (65, 1249310), (130, 624655), (271, 299650), (325, 249862), (461, 176150), (542, 149825), (650, 124931), (922, 88075), (1355, 59930), (2305, 35230), (2710, 29965), (3523, 23050), (4610, 17615), (5993, 13550), (6775, 11986), (7046, 11525)]