17679850

素因数分解:

$2^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{137}}^1$

素因数の和:267

約数の個数: 48

約数和(自身を含む): 34651800

約数和(自身を除く): 16971950

約数列:

[1, 2, 5, 10, 25, 29, 50, 58, 89, 137, 145, 178, 274, 290, 445, 685, 725, 890, 1370, 1450, 2225, 2581, 3425, 3973, 4450, 5162, 6850, 7946, 12193, 12905, 19865, 24386, 25810, 39730, 60965, 64525, 99325, 121930, 129050, 198650, 304825, 353597, 609650, 707194, 1767985, 3535970, 8839925, 17679850]

約数ペア:

[(1, 17679850), (2, 8839925), (5, 3535970), (10, 1767985), (25, 707194), (29, 609650), (50, 353597), (58, 304825), (89, 198650), (137, 129050), (145, 121930), (178, 99325), (274, 64525), (290, 60965), (445, 39730), (685, 25810), (725, 24386), (890, 19865), (1370, 12905), (1450, 12193), (2225, 7946), (2581, 6850), (3425, 5162), (3973, 4450)]