19748950

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1321}}^1$

素因数の和:1369

約数の個数: 48

約数和(自身を含む): 41309856

約数和(自身を除く): 21560906

約数列:

[1, 2, 5, 10, 13, 23, 25, 26, 46, 50, 65, 115, 130, 230, 299, 325, 575, 598, 650, 1150, 1321, 1495, 2642, 2990, 6605, 7475, 13210, 14950, 17173, 30383, 33025, 34346, 60766, 66050, 85865, 151915, 171730, 303830, 394979, 429325, 759575, 789958, 858650, 1519150, 1974895, 3949790, 9874475, 19748950]

約数ペア:

[(1, 19748950), (2, 9874475), (5, 3949790), (10, 1974895), (13, 1519150), (23, 858650), (25, 789958), (26, 759575), (46, 429325), (50, 394979), (65, 303830), (115, 171730), (130, 151915), (230, 85865), (299, 66050), (325, 60766), (575, 34346), (598, 33025), (650, 30383), (1150, 17173), (1321, 14950), (1495, 13210), (2642, 7475), (2990, 6605)]