634215280

素因数分解:

$2^4\times 5^1\times {\mathrm{647}}^1\times {\mathrm{12253}}^1$

素因数の和:12913

約数の個数: 40

約数和(自身を含む): 1476950112

約数和(自身を除く): 842734832

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 647, 1294, 2588, 3235, 5176, 6470, 10352, 12253, 12940, 24506, 25880, 49012, 51760, 61265, 98024, 122530, 196048, 245060, 490120, 980240, 7927691, 15855382, 31710764, 39638455, 63421528, 79276910, 126843056, 158553820, 317107640, 634215280]

約数ペア:

[(1, 634215280), (2, 317107640), (4, 158553820), (5, 126843056), (8, 79276910), (10, 63421528), (16, 39638455), (20, 31710764), (40, 15855382), (80, 7927691), (647, 980240), (1294, 490120), (2588, 245060), (3235, 196048), (5176, 122530), (6470, 98024), (10352, 61265), (12253, 51760), (12940, 49012), (24506, 25880)]