991440

素因数分解:

$2^4\times 3^6\times 5^1\times {\mathrm{17}}^1$

素因数の和:48

約数の個数: 140

約数和(自身を含む): 3659364

約数和(自身を除く): 2667924

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 17, 18, 20, 24, 27, 30, 34, 36, 40, 45, 48, 51, 54, 60, 68, 72, 80, 81, 85, 90, 102, 108, 120, 135, 136, 144, 153, 162, 170, 180, 204, 216, 240, 243, 255, 270, 272, 306, 324, 340, 360, 405, 408, 432, 459, 486, 510, 540, 612, 648, 680, 720, 729, 765, 810, 816, 918, 972, 1020, 1080, 1215, 1224, 1296, 1360, 1377, 1458, 1530, 1620, 1836, 1944, 2040, 2160, 2295, 2430, 2448, 2754, 2916, 3060, 3240, 3645, 3672, 3888, 4080, 4131, 4590, 4860, 5508, 5832, 6120, 6480, 6885, 7290, 7344, 8262, 9180, 9720, 11016, 11664, 12240, 12393, 13770, 14580, 16524, 18360, 19440, 20655, 22032, 24786, 27540, 29160, 33048, 36720, 41310, 49572, 55080, 58320, 61965, 66096, 82620, 99144, 110160, 123930, 165240, 198288, 247860, 330480, 495720, 991440]

約数ペア:

[(1, 991440), (2, 495720), (3, 330480), (4, 247860), (5, 198288), (6, 165240), (8, 123930), (9, 110160), (10, 99144), (12, 82620), (15, 66096), (16, 61965), (17, 58320), (18, 55080), (20, 49572), (24, 41310), (27, 36720), (30, 33048), (34, 29160), (36, 27540), (40, 24786), (45, 22032), (48, 20655), (51, 19440), (54, 18360), (60, 16524), (68, 14580), (72, 13770), (80, 12393), (81, 12240), (85, 11664), (90, 11016), (102, 9720), (108, 9180), (120, 8262), (135, 7344), (136, 7290), (144, 6885), (153, 6480), (162, 6120), (170, 5832), (180, 5508), (204, 4860), (216, 4590), (240, 4131), (243, 4080), (255, 3888), (270, 3672), (272, 3645), (306, 3240), (324, 3060), (340, 2916), (360, 2754), (405, 2448), (408, 2430), (432, 2295), (459, 2160), (486, 2040), (510, 1944), (540, 1836), (612, 1620), (648, 1530), (680, 1458), (720, 1377), (729, 1360), (765, 1296), (810, 1224), (816, 1215), (918, 1080), (972, 1020)]