149739140

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{139}}^1\times {\mathrm{883}}^1$

素因数の和:1092

約数の個数: 48

約数和(自身を含む): 322271040

約数和(自身を除く): 172531900

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 139, 244, 278, 305, 556, 610, 695, 883, 1220, 1390, 1766, 2780, 3532, 4415, 8479, 8830, 16958, 17660, 33916, 42395, 53863, 84790, 107726, 122737, 169580, 215452, 245474, 269315, 490948, 538630, 613685, 1077260, 1227370, 2454740, 7486957, 14973914, 29947828, 37434785, 74869570, 149739140]

約数ペア:

[(1, 149739140), (2, 74869570), (4, 37434785), (5, 29947828), (10, 14973914), (20, 7486957), (61, 2454740), (122, 1227370), (139, 1077260), (244, 613685), (278, 538630), (305, 490948), (556, 269315), (610, 245474), (695, 215452), (883, 169580), (1220, 122737), (1390, 107726), (1766, 84790), (2780, 53863), (3532, 42395), (4415, 33916), (8479, 17660), (8830, 16958)]