1800440

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{103}}^1$

素因数の和:156

約数の個数: 64

約数和(自身を含む): 4492800

約数和(自身を除く): 2692360

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 23, 38, 40, 46, 76, 92, 95, 103, 115, 152, 184, 190, 206, 230, 380, 412, 437, 460, 515, 760, 824, 874, 920, 1030, 1748, 1957, 2060, 2185, 2369, 3496, 3914, 4120, 4370, 4738, 7828, 8740, 9476, 9785, 11845, 15656, 17480, 18952, 19570, 23690, 39140, 45011, 47380, 78280, 90022, 94760, 180044, 225055, 360088, 450110, 900220, 1800440]

約数ペア:

[(1, 1800440), (2, 900220), (4, 450110), (5, 360088), (8, 225055), (10, 180044), (19, 94760), (20, 90022), (23, 78280), (38, 47380), (40, 45011), (46, 39140), (76, 23690), (92, 19570), (95, 18952), (103, 17480), (115, 15656), (152, 11845), (184, 9785), (190, 9476), (206, 8740), (230, 7828), (380, 4738), (412, 4370), (437, 4120), (460, 3914), (515, 3496), (760, 2369), (824, 2185), (874, 2060), (920, 1957), (1030, 1748)]