21622980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{29}}^1\times {\mathrm{43}}^1$

素因数の和:118

約数の個数: 144

約数和(自身を含む): 68080320

約数和(自身を除く): 46457340

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 29, 30, 34, 43, 51, 58, 60, 68, 85, 86, 87, 102, 116, 129, 145, 170, 172, 174, 204, 215, 255, 258, 289, 290, 340, 348, 430, 435, 493, 510, 516, 578, 580, 645, 731, 860, 867, 870, 986, 1020, 1156, 1247, 1290, 1445, 1462, 1479, 1734, 1740, 1972, 2193, 2465, 2494, 2580, 2890, 2924, 2958, 3468, 3655, 3741, 4335, 4386, 4930, 4988, 5780, 5916, 6235, 7310, 7395, 7482, 8381, 8670, 8772, 9860, 10965, 12427, 12470, 14620, 14790, 14964, 16762, 17340, 18705, 21199, 21930, 24854, 24940, 25143, 29580, 33524, 37281, 37410, 41905, 42398, 43860, 49708, 50286, 62135, 63597, 74562, 74820, 83810, 84796, 100572, 105995, 124270, 125715, 127194, 149124, 167620, 186405, 211990, 248540, 251430, 254388, 317985, 360383, 372810, 423980, 502860, 635970, 720766, 745620, 1081149, 1271940, 1441532, 1801915, 2162298, 3603830, 4324596, 5405745, 7207660, 10811490, 21622980]

約数ペア:

[(1, 21622980), (2, 10811490), (3, 7207660), (4, 5405745), (5, 4324596), (6, 3603830), (10, 2162298), (12, 1801915), (15, 1441532), (17, 1271940), (20, 1081149), (29, 745620), (30, 720766), (34, 635970), (43, 502860), (51, 423980), (58, 372810), (60, 360383), (68, 317985), (85, 254388), (86, 251430), (87, 248540), (102, 211990), (116, 186405), (129, 167620), (145, 149124), (170, 127194), (172, 125715), (174, 124270), (204, 105995), (215, 100572), (255, 84796), (258, 83810), (289, 74820), (290, 74562), (340, 63597), (348, 62135), (430, 50286), (435, 49708), (493, 43860), (510, 42398), (516, 41905), (578, 37410), (580, 37281), (645, 33524), (731, 29580), (860, 25143), (867, 24940), (870, 24854), (986, 21930), (1020, 21199), (1156, 18705), (1247, 17340), (1290, 16762), (1445, 14964), (1462, 14790), (1479, 14620), (1734, 12470), (1740, 12427), (1972, 10965), (2193, 9860), (2465, 8772), (2494, 8670), (2580, 8381), (2890, 7482), (2924, 7395), (2958, 7310), (3468, 6235), (3655, 5916), (3741, 5780), (4335, 4988), (4386, 4930)]