17873980

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{227}}^1$

素因数の和:394

約数の個数: 48

約数和(自身を含む): 39223296

約数和(自身を除く): 21349316

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 127, 155, 227, 254, 310, 454, 508, 620, 635, 908, 1135, 1270, 2270, 2540, 3937, 4540, 7037, 7874, 14074, 15748, 19685, 28148, 28829, 35185, 39370, 57658, 70370, 78740, 115316, 140740, 144145, 288290, 576580, 893699, 1787398, 3574796, 4468495, 8936990, 17873980]

約数ペア:

[(1, 17873980), (2, 8936990), (4, 4468495), (5, 3574796), (10, 1787398), (20, 893699), (31, 576580), (62, 288290), (124, 144145), (127, 140740), (155, 115316), (227, 78740), (254, 70370), (310, 57658), (454, 39370), (508, 35185), (620, 28829), (635, 28148), (908, 19685), (1135, 15748), (1270, 14074), (2270, 7874), (2540, 7037), (3937, 4540)]