782800

素因数分解:

$2^4\times 5^2\times {\mathrm{19}}^1\times {\mathrm{103}}^1$

素因数の和:140

約数の個数: 60

約数和(自身を含む): 1998880

約数和(自身を除く): 1216080

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 25, 38, 40, 50, 76, 80, 95, 100, 103, 152, 190, 200, 206, 304, 380, 400, 412, 475, 515, 760, 824, 950, 1030, 1520, 1648, 1900, 1957, 2060, 2575, 3800, 3914, 4120, 5150, 7600, 7828, 8240, 9785, 10300, 15656, 19570, 20600, 31312, 39140, 41200, 48925, 78280, 97850, 156560, 195700, 391400, 782800]

約数ペア:

[(1, 782800), (2, 391400), (4, 195700), (5, 156560), (8, 97850), (10, 78280), (16, 48925), (19, 41200), (20, 39140), (25, 31312), (38, 20600), (40, 19570), (50, 15656), (76, 10300), (80, 9785), (95, 8240), (100, 7828), (103, 7600), (152, 5150), (190, 4120), (200, 3914), (206, 3800), (304, 2575), (380, 2060), (400, 1957), (412, 1900), (475, 1648), (515, 1520), (760, 1030), (824, 950)]