8904988540

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{127}}^1\times {\mathrm{71549}}^1$

素因数の和:71699

約数の個数: 72

約数和(自身を含む): 21925209600

約数和(自身を除く): 13020221060

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 127, 140, 196, 245, 254, 490, 508, 635, 889, 980, 1270, 1778, 2540, 3556, 4445, 6223, 8890, 12446, 17780, 24892, 31115, 62230, 71549, 124460, 143098, 286196, 357745, 500843, 715490, 1001686, 1430980, 2003372, 2504215, 3505901, 5008430, 7011802, 9086723, 10016860, 14023604, 17529505, 18173446, 35059010, 36346892, 45433615, 63607061, 70118020, 90867230, 127214122, 181734460, 254428244, 318035305, 445249427, 636070610, 890498854, 1272141220, 1780997708, 2226247135, 4452494270, 8904988540]

約数ペア:

[(1, 8904988540), (2, 4452494270), (4, 2226247135), (5, 1780997708), (7, 1272141220), (10, 890498854), (14, 636070610), (20, 445249427), (28, 318035305), (35, 254428244), (49, 181734460), (70, 127214122), (98, 90867230), (127, 70118020), (140, 63607061), (196, 45433615), (245, 36346892), (254, 35059010), (490, 18173446), (508, 17529505), (635, 14023604), (889, 10016860), (980, 9086723), (1270, 7011802), (1778, 5008430), (2540, 3505901), (3556, 2504215), (4445, 2003372), (6223, 1430980), (8890, 1001686), (12446, 715490), (17780, 500843), (24892, 357745), (31115, 286196), (62230, 143098), (71549, 124460)]