201226420

素因数分解:

$2^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{227}}^1\times {\mathrm{349}}^1$

素因数の和:712

約数の個数: 48

約数和(自身を含む): 429004800

約数和(自身を除く): 227778380

約数列:

[1, 2, 4, 5, 10, 20, 127, 227, 254, 349, 454, 508, 635, 698, 908, 1135, 1270, 1396, 1745, 2270, 2540, 3490, 4540, 6980, 28829, 44323, 57658, 79223, 88646, 115316, 144145, 158446, 177292, 221615, 288290, 316892, 396115, 443230, 576580, 792230, 886460, 1584460, 10061321, 20122642, 40245284, 50306605, 100613210, 201226420]

約数ペア:

[(1, 201226420), (2, 100613210), (4, 50306605), (5, 40245284), (10, 20122642), (20, 10061321), (127, 1584460), (227, 886460), (254, 792230), (349, 576580), (454, 443230), (508, 396115), (635, 316892), (698, 288290), (908, 221615), (1135, 177292), (1270, 158446), (1396, 144145), (1745, 115316), (2270, 88646), (2540, 79223), (3490, 57658), (4540, 44323), (6980, 28829)]