20192445425

素因数分解:

$5^2\times {\mathrm{79}}^1\times {\mathrm{83}}^1\times {\mathrm{199}}^1\times {\mathrm{619}}^1$

素因数の和:990

約数の個数: 48

約数和(自身を含む): 25831680000

約数和(自身を除く): 5639234575

約数列:

[1, 5, 25, 79, 83, 199, 395, 415, 619, 995, 1975, 2075, 3095, 4975, 6557, 15475, 15721, 16517, 32785, 48901, 51377, 78605, 82585, 123181, 163925, 244505, 256885, 393025, 412925, 615905, 1222525, 1284425, 1304843, 3079525, 4058783, 6524215, 9731299, 10224023, 20293915, 32621075, 48656495, 51120115, 101469575, 243282475, 255600575, 807697817, 4038489085, 20192445425]

約数ペア:

[(1, 20192445425), (5, 4038489085), (25, 807697817), (79, 255600575), (83, 243282475), (199, 101469575), (395, 51120115), (415, 48656495), (619, 32621075), (995, 20293915), (1975, 10224023), (2075, 9731299), (3095, 6524215), (4975, 4058783), (6557, 3079525), (15475, 1304843), (15721, 1284425), (16517, 1222525), (32785, 615905), (48901, 412925), (51377, 393025), (78605, 256885), (82585, 244505), (123181, 163925)]