217438960

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{2039}}^1$

素因数の和:2126

約数の個数: 80

約数和(自身を含む): 534251520

約数和(自身を除く): 316812560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 43, 62, 80, 86, 124, 155, 172, 215, 248, 310, 344, 430, 496, 620, 688, 860, 1240, 1333, 1720, 2039, 2480, 2666, 3440, 4078, 5332, 6665, 8156, 10195, 10664, 13330, 16312, 20390, 21328, 26660, 32624, 40780, 53320, 63209, 81560, 87677, 106640, 126418, 163120, 175354, 252836, 316045, 350708, 438385, 505672, 632090, 701416, 876770, 1011344, 1264180, 1402832, 1753540, 2528360, 2717987, 3507080, 5056720, 5435974, 7014160, 10871948, 13589935, 21743896, 27179870, 43487792, 54359740, 108719480, 217438960]

約数ペア:

[(1, 217438960), (2, 108719480), (4, 54359740), (5, 43487792), (8, 27179870), (10, 21743896), (16, 13589935), (20, 10871948), (31, 7014160), (40, 5435974), (43, 5056720), (62, 3507080), (80, 2717987), (86, 2528360), (124, 1753540), (155, 1402832), (172, 1264180), (215, 1011344), (248, 876770), (310, 701416), (344, 632090), (430, 505672), (496, 438385), (620, 350708), (688, 316045), (860, 252836), (1240, 175354), (1333, 163120), (1720, 126418), (2039, 106640), (2480, 87677), (2666, 81560), (3440, 63209), (4078, 53320), (5332, 40780), (6665, 32624), (8156, 26660), (10195, 21328), (10664, 20390), (13330, 16312)]