1285700

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1$

素因数の和:93

約数の個数: 72

約数和(自身を含む): 3208128

約数和(自身を除く): 1922428

約数列:

[1, 2, 4, 5, 10, 13, 20, 23, 25, 26, 43, 46, 50, 52, 65, 86, 92, 100, 115, 130, 172, 215, 230, 260, 299, 325, 430, 460, 559, 575, 598, 650, 860, 989, 1075, 1118, 1150, 1196, 1300, 1495, 1978, 2150, 2236, 2300, 2795, 2990, 3956, 4300, 4945, 5590, 5980, 7475, 9890, 11180, 12857, 13975, 14950, 19780, 24725, 25714, 27950, 29900, 49450, 51428, 55900, 64285, 98900, 128570, 257140, 321425, 642850, 1285700]

約数ペア:

[(1, 1285700), (2, 642850), (4, 321425), (5, 257140), (10, 128570), (13, 98900), (20, 64285), (23, 55900), (25, 51428), (26, 49450), (43, 29900), (46, 27950), (50, 25714), (52, 24725), (65, 19780), (86, 14950), (92, 13975), (100, 12857), (115, 11180), (130, 9890), (172, 7475), (215, 5980), (230, 5590), (260, 4945), (299, 4300), (325, 3956), (430, 2990), (460, 2795), (559, 2300), (575, 2236), (598, 2150), (650, 1978), (860, 1495), (989, 1300), (1075, 1196), (1118, 1150)]