4400500

素因数分解:

$2^2\times 5^3\times {\mathrm{13}}^1\times {\mathrm{677}}^1$

素因数の和:709

約数の個数: 48

約数和(自身を含む): 10365264

約数和(自身を除く): 5964764

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 125, 130, 250, 260, 325, 500, 650, 677, 1300, 1354, 1625, 2708, 3250, 3385, 6500, 6770, 8801, 13540, 16925, 17602, 33850, 35204, 44005, 67700, 84625, 88010, 169250, 176020, 220025, 338500, 440050, 880100, 1100125, 2200250, 4400500]

約数ペア:

[(1, 4400500), (2, 2200250), (4, 1100125), (5, 880100), (10, 440050), (13, 338500), (20, 220025), (25, 176020), (26, 169250), (50, 88010), (52, 84625), (65, 67700), (100, 44005), (125, 35204), (130, 33850), (250, 17602), (260, 16925), (325, 13540), (500, 8801), (650, 6770), (677, 6500), (1300, 3385), (1354, 3250), (1625, 2708)]