489792260

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{239}}^1\times {\mathrm{5393}}^1$

素因数の和:5660

約数の個数: 48

約数和(自身を含む): 1087430400

約数和(自身を除く): 597638140

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 239, 380, 478, 956, 1195, 2390, 4541, 4780, 5393, 9082, 10786, 18164, 21572, 22705, 26965, 45410, 53930, 90820, 102467, 107860, 204934, 409868, 512335, 1024670, 1288927, 2049340, 2577854, 5155708, 6444635, 12889270, 24489613, 25778540, 48979226, 97958452, 122448065, 244896130, 489792260]

約数ペア:

[(1, 489792260), (2, 244896130), (4, 122448065), (5, 97958452), (10, 48979226), (19, 25778540), (20, 24489613), (38, 12889270), (76, 6444635), (95, 5155708), (190, 2577854), (239, 2049340), (380, 1288927), (478, 1024670), (956, 512335), (1195, 409868), (2390, 204934), (4541, 107860), (4780, 102467), (5393, 90820), (9082, 53930), (10786, 45410), (18164, 26965), (21572, 22705)]