19957320

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1087}}^1$

素因数の和:1124

約数の個数: 128

約数和(自身を含む): 70502400

約数和(自身を除く): 50545080

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 17, 18, 20, 24, 27, 30, 34, 36, 40, 45, 51, 54, 60, 68, 72, 85, 90, 102, 108, 120, 135, 136, 153, 170, 180, 204, 216, 255, 270, 306, 340, 360, 408, 459, 510, 540, 612, 680, 765, 918, 1020, 1080, 1087, 1224, 1530, 1836, 2040, 2174, 2295, 3060, 3261, 3672, 4348, 4590, 5435, 6120, 6522, 8696, 9180, 9783, 10870, 13044, 16305, 18360, 18479, 19566, 21740, 26088, 29349, 32610, 36958, 39132, 43480, 48915, 55437, 58698, 65220, 73916, 78264, 92395, 97830, 110874, 117396, 130440, 146745, 147832, 166311, 184790, 195660, 221748, 234792, 277185, 293490, 332622, 369580, 391320, 443496, 498933, 554370, 586980, 665244, 739160, 831555, 997866, 1108740, 1173960, 1330488, 1663110, 1995732, 2217480, 2494665, 3326220, 3991464, 4989330, 6652440, 9978660, 19957320]

約数ペア:

[(1, 19957320), (2, 9978660), (3, 6652440), (4, 4989330), (5, 3991464), (6, 3326220), (8, 2494665), (9, 2217480), (10, 1995732), (12, 1663110), (15, 1330488), (17, 1173960), (18, 1108740), (20, 997866), (24, 831555), (27, 739160), (30, 665244), (34, 586980), (36, 554370), (40, 498933), (45, 443496), (51, 391320), (54, 369580), (60, 332622), (68, 293490), (72, 277185), (85, 234792), (90, 221748), (102, 195660), (108, 184790), (120, 166311), (135, 147832), (136, 146745), (153, 130440), (170, 117396), (180, 110874), (204, 97830), (216, 92395), (255, 78264), (270, 73916), (306, 65220), (340, 58698), (360, 55437), (408, 48915), (459, 43480), (510, 39132), (540, 36958), (612, 32610), (680, 29349), (765, 26088), (918, 21740), (1020, 19566), (1080, 18479), (1087, 18360), (1224, 16305), (1530, 13044), (1836, 10870), (2040, 9783), (2174, 9180), (2295, 8696), (3060, 6522), (3261, 6120), (3672, 5435), (4348, 4590)]