721319724

素因数分解:

$2^2\times 3^2\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1$

素因数の和:193

約数の個数: 216

約数和(自身を含む): 2112037200

約数和(自身を除く): 1390717476

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 19, 34, 36, 38, 41, 51, 57, 68, 76, 82, 89, 102, 114, 123, 153, 164, 171, 178, 204, 228, 246, 267, 289, 306, 323, 342, 356, 369, 492, 534, 578, 612, 646, 684, 697, 738, 779, 801, 867, 969, 1068, 1156, 1292, 1394, 1476, 1513, 1558, 1602, 1691, 1734, 1938, 2091, 2337, 2601, 2788, 2907, 3026, 3116, 3204, 3382, 3468, 3649, 3876, 4182, 4539, 4674, 5073, 5202, 5491, 5814, 6052, 6273, 6764, 7011, 7298, 8364, 9078, 9348, 10146, 10404, 10947, 10982, 11628, 11849, 12546, 13243, 13617, 14022, 14596, 15219, 16473, 18156, 20292, 21894, 21964, 23698, 25092, 25721, 26486, 27234, 28044, 28747, 30438, 32841, 32946, 35547, 39729, 43788, 47396, 49419, 51442, 52972, 54468, 57494, 60876, 62033, 65682, 65892, 69331, 71094, 77163, 79458, 86241, 98838, 102884, 106641, 114988, 119187, 124066, 131364, 138662, 142188, 154326, 158916, 172482, 186099, 197676, 207993, 213282, 225131, 231489, 238374, 248132, 258723, 277324, 308652, 344964, 372198, 415986, 426564, 450262, 462978, 476748, 488699, 517446, 558297, 623979, 675393, 744396, 831972, 900524, 925956, 977398, 1034892, 1054561, 1116594, 1178627, 1247958, 1350786, 1466097, 1954796, 2026179, 2109122, 2233188, 2357254, 2495916, 2701572, 2932194, 3163683, 3535881, 4052358, 4218244, 4398291, 4714508, 5864388, 6327366, 7071762, 8104716, 8796582, 9491049, 10607643, 12654732, 14143524, 17593164, 18982098, 20036659, 21215286, 37964196, 40073318, 42430572, 60109977, 80146636, 120219954, 180329931, 240439908, 360659862, 721319724]

約数ペア:

[(1, 721319724), (2, 360659862), (3, 240439908), (4, 180329931), (6, 120219954), (9, 80146636), (12, 60109977), (17, 42430572), (18, 40073318), (19, 37964196), (34, 21215286), (36, 20036659), (38, 18982098), (41, 17593164), (51, 14143524), (57, 12654732), (68, 10607643), (76, 9491049), (82, 8796582), (89, 8104716), (102, 7071762), (114, 6327366), (123, 5864388), (153, 4714508), (164, 4398291), (171, 4218244), (178, 4052358), (204, 3535881), (228, 3163683), (246, 2932194), (267, 2701572), (289, 2495916), (306, 2357254), (323, 2233188), (342, 2109122), (356, 2026179), (369, 1954796), (492, 1466097), (534, 1350786), (578, 1247958), (612, 1178627), (646, 1116594), (684, 1054561), (697, 1034892), (738, 977398), (779, 925956), (801, 900524), (867, 831972), (969, 744396), (1068, 675393), (1156, 623979), (1292, 558297), (1394, 517446), (1476, 488699), (1513, 476748), (1558, 462978), (1602, 450262), (1691, 426564), (1734, 415986), (1938, 372198), (2091, 344964), (2337, 308652), (2601, 277324), (2788, 258723), (2907, 248132), (3026, 238374), (3116, 231489), (3204, 225131), (3382, 213282), (3468, 207993), (3649, 197676), (3876, 186099), (4182, 172482), (4539, 158916), (4674, 154326), (5073, 142188), (5202, 138662), (5491, 131364), (5814, 124066), (6052, 119187), (6273, 114988), (6764, 106641), (7011, 102884), (7298, 98838), (8364, 86241), (9078, 79458), (9348, 77163), (10146, 71094), (10404, 69331), (10947, 65892), (10982, 65682), (11628, 62033), (11849, 60876), (12546, 57494), (13243, 54468), (13617, 52972), (14022, 51442), (14596, 49419), (15219, 47396), (16473, 43788), (18156, 39729), (20292, 35547), (21894, 32946), (21964, 32841), (23698, 30438), (25092, 28747), (25721, 28044), (26486, 27234)]