18125145

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1$

素因数の和:119

約数の個数: 96

約数和(自身を含む): 37065600

約数和(自身を除く): 18940455

約数列:

[1, 3, 5, 9, 15, 17, 19, 29, 43, 45, 51, 57, 85, 87, 95, 129, 145, 153, 171, 215, 255, 261, 285, 323, 387, 435, 493, 551, 645, 731, 765, 817, 855, 969, 1247, 1305, 1479, 1615, 1653, 1935, 2193, 2451, 2465, 2755, 2907, 3655, 3741, 4085, 4437, 4845, 4959, 6235, 6579, 7353, 7395, 8265, 9367, 10965, 11223, 12255, 13889, 14535, 18705, 21199, 22185, 23693, 24795, 28101, 32895, 36765, 41667, 46835, 56115, 63597, 69445, 71079, 84303, 105995, 118465, 125001, 140505, 190791, 208335, 213237, 317985, 355395, 402781, 421515, 625005, 953955, 1066185, 1208343, 2013905, 3625029, 6041715, 18125145]

約数ペア:

[(1, 18125145), (3, 6041715), (5, 3625029), (9, 2013905), (15, 1208343), (17, 1066185), (19, 953955), (29, 625005), (43, 421515), (45, 402781), (51, 355395), (57, 317985), (85, 213237), (87, 208335), (95, 190791), (129, 140505), (145, 125001), (153, 118465), (171, 105995), (215, 84303), (255, 71079), (261, 69445), (285, 63597), (323, 56115), (387, 46835), (435, 41667), (493, 36765), (551, 32895), (645, 28101), (731, 24795), (765, 23693), (817, 22185), (855, 21199), (969, 18705), (1247, 14535), (1305, 13889), (1479, 12255), (1615, 11223), (1653, 10965), (1935, 9367), (2193, 8265), (2451, 7395), (2465, 7353), (2755, 6579), (2907, 6235), (3655, 4959), (3741, 4845), (4085, 4437)]