28256040

素因数分解:

$2^3\times 3^7\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1$

素因数の和:68

約数の個数: 256

約数和(自身を含む): 106272000

約数和(自身を除く): 78015960

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 17, 18, 19, 20, 24, 27, 30, 34, 36, 38, 40, 45, 51, 54, 57, 60, 68, 72, 76, 81, 85, 90, 95, 102, 108, 114, 120, 135, 136, 152, 153, 162, 170, 171, 180, 190, 204, 216, 228, 243, 255, 270, 285, 306, 323, 324, 340, 342, 360, 380, 405, 408, 456, 459, 486, 510, 513, 540, 570, 612, 646, 648, 680, 684, 729, 760, 765, 810, 855, 918, 969, 972, 1020, 1026, 1080, 1140, 1215, 1224, 1292, 1368, 1377, 1458, 1530, 1539, 1615, 1620, 1710, 1836, 1938, 1944, 2040, 2052, 2187, 2280, 2295, 2430, 2565, 2584, 2754, 2907, 2916, 3060, 3078, 3230, 3240, 3420, 3645, 3672, 3876, 4104, 4131, 4374, 4590, 4617, 4845, 4860, 5130, 5508, 5814, 5832, 6120, 6156, 6460, 6840, 6885, 7290, 7695, 7752, 8262, 8721, 8748, 9180, 9234, 9690, 9720, 10260, 10935, 11016, 11628, 12312, 12393, 12920, 13770, 13851, 14535, 14580, 15390, 16524, 17442, 17496, 18360, 18468, 19380, 20520, 20655, 21870, 23085, 23256, 24786, 26163, 27540, 27702, 29070, 29160, 30780, 33048, 34884, 36936, 37179, 38760, 41310, 41553, 43605, 43740, 46170, 49572, 52326, 55080, 55404, 58140, 61560, 61965, 69255, 69768, 74358, 78489, 82620, 83106, 87210, 87480, 92340, 99144, 104652, 110808, 116280, 123930, 130815, 138510, 148716, 156978, 165240, 166212, 174420, 184680, 185895, 207765, 209304, 235467, 247860, 261630, 277020, 297432, 313956, 332424, 348840, 371790, 392445, 415530, 470934, 495720, 523260, 554040, 627912, 706401, 743580, 784890, 831060, 941868, 1046520, 1177335, 1412802, 1487160, 1569780, 1662120, 1883736, 2354670, 2825604, 3139560, 3532005, 4709340, 5651208, 7064010, 9418680, 14128020, 28256040]

約数ペア:

[(1, 28256040), (2, 14128020), (3, 9418680), (4, 7064010), (5, 5651208), (6, 4709340), (8, 3532005), (9, 3139560), (10, 2825604), (12, 2354670), (15, 1883736), (17, 1662120), (18, 1569780), (19, 1487160), (20, 1412802), (24, 1177335), (27, 1046520), (30, 941868), (34, 831060), (36, 784890), (38, 743580), (40, 706401), (45, 627912), (51, 554040), (54, 523260), (57, 495720), (60, 470934), (68, 415530), (72, 392445), (76, 371790), (81, 348840), (85, 332424), (90, 313956), (95, 297432), (102, 277020), (108, 261630), (114, 247860), (120, 235467), (135, 209304), (136, 207765), (152, 185895), (153, 184680), (162, 174420), (170, 166212), (171, 165240), (180, 156978), (190, 148716), (204, 138510), (216, 130815), (228, 123930), (243, 116280), (255, 110808), (270, 104652), (285, 99144), (306, 92340), (323, 87480), (324, 87210), (340, 83106), (342, 82620), (360, 78489), (380, 74358), (405, 69768), (408, 69255), (456, 61965), (459, 61560), (486, 58140), (510, 55404), (513, 55080), (540, 52326), (570, 49572), (612, 46170), (646, 43740), (648, 43605), (680, 41553), (684, 41310), (729, 38760), (760, 37179), (765, 36936), (810, 34884), (855, 33048), (918, 30780), (969, 29160), (972, 29070), (1020, 27702), (1026, 27540), (1080, 26163), (1140, 24786), (1215, 23256), (1224, 23085), (1292, 21870), (1368, 20655), (1377, 20520), (1458, 19380), (1530, 18468), (1539, 18360), (1615, 17496), (1620, 17442), (1710, 16524), (1836, 15390), (1938, 14580), (1944, 14535), (2040, 13851), (2052, 13770), (2187, 12920), (2280, 12393), (2295, 12312), (2430, 11628), (2565, 11016), (2584, 10935), (2754, 10260), (2907, 9720), (2916, 9690), (3060, 9234), (3078, 9180), (3230, 8748), (3240, 8721), (3420, 8262), (3645, 7752), (3672, 7695), (3876, 7290), (4104, 6885), (4131, 6840), (4374, 6460), (4590, 6156), (4617, 6120), (4845, 5832), (4860, 5814), (5130, 5508)]