15817905

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1$

素因数の和:111

約数の個数: 96

約数和(自身を含む): 32348160

約数和(自身を除く): 16530255

約数列:

[1, 3, 5, 9, 15, 17, 23, 29, 31, 45, 51, 69, 85, 87, 93, 115, 145, 153, 155, 207, 255, 261, 279, 345, 391, 435, 465, 493, 527, 667, 713, 765, 899, 1035, 1173, 1305, 1395, 1479, 1581, 1955, 2001, 2139, 2465, 2635, 2697, 3335, 3519, 3565, 4437, 4495, 4743, 5865, 6003, 6417, 7395, 7905, 8091, 10005, 10695, 11339, 12121, 13485, 15283, 17595, 20677, 22185, 23715, 30015, 32085, 34017, 36363, 40455, 45849, 56695, 60605, 62031, 76415, 102051, 103385, 109089, 137547, 170085, 181815, 186093, 229245, 310155, 351509, 510255, 545445, 687735, 930465, 1054527, 1757545, 3163581, 5272635, 15817905]

約数ペア:

[(1, 15817905), (3, 5272635), (5, 3163581), (9, 1757545), (15, 1054527), (17, 930465), (23, 687735), (29, 545445), (31, 510255), (45, 351509), (51, 310155), (69, 229245), (85, 186093), (87, 181815), (93, 170085), (115, 137547), (145, 109089), (153, 103385), (155, 102051), (207, 76415), (255, 62031), (261, 60605), (279, 56695), (345, 45849), (391, 40455), (435, 36363), (465, 34017), (493, 32085), (527, 30015), (667, 23715), (713, 22185), (765, 20677), (899, 17595), (1035, 15283), (1173, 13485), (1305, 12121), (1395, 11339), (1479, 10695), (1581, 10005), (1955, 8091), (2001, 7905), (2139, 7395), (2465, 6417), (2635, 6003), (2697, 5865), (3335, 4743), (3519, 4495), (3565, 4437)]