247570540

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{151}}^1\times {\mathrm{239}}^1$

素因数の和:420

約数の個数: 96

約数和(自身を含む): 612864000

約数和(自身を除く): 365293460

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 151, 196, 239, 245, 302, 343, 478, 490, 604, 686, 755, 956, 980, 1057, 1195, 1372, 1510, 1673, 1715, 2114, 2390, 3020, 3346, 3430, 4228, 4780, 5285, 6692, 6860, 7399, 8365, 10570, 11711, 14798, 16730, 21140, 23422, 29596, 33460, 36089, 36995, 46844, 51793, 58555, 72178, 73990, 81977, 103586, 117110, 144356, 147980, 163954, 180445, 207172, 234220, 252623, 258965, 327908, 360890, 409885, 505246, 517930, 721780, 819770, 1010492, 1035860, 1263115, 1639540, 1768361, 2526230, 3536722, 5052460, 7073444, 8841805, 12378527, 17683610, 24757054, 35367220, 49514108, 61892635, 123785270, 247570540]

約数ペア:

[(1, 247570540), (2, 123785270), (4, 61892635), (5, 49514108), (7, 35367220), (10, 24757054), (14, 17683610), (20, 12378527), (28, 8841805), (35, 7073444), (49, 5052460), (70, 3536722), (98, 2526230), (140, 1768361), (151, 1639540), (196, 1263115), (239, 1035860), (245, 1010492), (302, 819770), (343, 721780), (478, 517930), (490, 505246), (604, 409885), (686, 360890), (755, 327908), (956, 258965), (980, 252623), (1057, 234220), (1195, 207172), (1372, 180445), (1510, 163954), (1673, 147980), (1715, 144356), (2114, 117110), (2390, 103586), (3020, 81977), (3346, 73990), (3430, 72178), (4228, 58555), (4780, 51793), (5285, 46844), (6692, 36995), (6860, 36089), (7399, 33460), (8365, 29596), (10570, 23422), (11711, 21140), (14798, 16730)]