280432420

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{241}}^1\times {\mathrm{797}}^1$

素因数の和:1120

約数の個数: 48

約数和(自身を含む): 600204528

約数和(自身を除く): 319772108

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 241, 292, 365, 482, 730, 797, 964, 1205, 1460, 1594, 2410, 3188, 3985, 4820, 7970, 15940, 17593, 35186, 58181, 70372, 87965, 116362, 175930, 192077, 232724, 290905, 351860, 384154, 581810, 768308, 960385, 1163620, 1920770, 3841540, 14021621, 28043242, 56086484, 70108105, 140216210, 280432420]

約数ペア:

[(1, 280432420), (2, 140216210), (4, 70108105), (5, 56086484), (10, 28043242), (20, 14021621), (73, 3841540), (146, 1920770), (241, 1163620), (292, 960385), (365, 768308), (482, 581810), (730, 384154), (797, 351860), (964, 290905), (1205, 232724), (1460, 192077), (1594, 175930), (2410, 116362), (3188, 87965), (3985, 70372), (4820, 58181), (7970, 35186), (15940, 17593)]