784400

素因数分解:

$2^4\times 5^2\times {\mathrm{37}}^1\times {\mathrm{53}}^1$

素因数の和:108

約数の個数: 60

約数和(自身を含む): 1971972

約数和(自身を除く): 1187572

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 37, 40, 50, 53, 74, 80, 100, 106, 148, 185, 200, 212, 265, 296, 370, 400, 424, 530, 592, 740, 848, 925, 1060, 1325, 1480, 1850, 1961, 2120, 2650, 2960, 3700, 3922, 4240, 5300, 7400, 7844, 9805, 10600, 14800, 15688, 19610, 21200, 31376, 39220, 49025, 78440, 98050, 156880, 196100, 392200, 784400]

約数ペア:

[(1, 784400), (2, 392200), (4, 196100), (5, 156880), (8, 98050), (10, 78440), (16, 49025), (20, 39220), (25, 31376), (37, 21200), (40, 19610), (50, 15688), (53, 14800), (74, 10600), (80, 9805), (100, 7844), (106, 7400), (148, 5300), (185, 4240), (200, 3922), (212, 3700), (265, 2960), (296, 2650), (370, 2120), (400, 1961), (424, 1850), (530, 1480), (592, 1325), (740, 1060), (848, 925)]