638752716

素因数分解:

$2^2\times 3^9\times 7^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1$

素因数の和:118

約数の個数: 240

約数和(自身を含む): 2050146560

約数和(自身を除く): 1411393844

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 19, 21, 27, 28, 36, 38, 42, 54, 57, 61, 63, 76, 81, 84, 108, 114, 122, 126, 133, 162, 171, 183, 189, 228, 243, 244, 252, 266, 324, 342, 366, 378, 399, 427, 486, 513, 532, 549, 567, 684, 729, 732, 756, 798, 854, 972, 1026, 1098, 1134, 1159, 1197, 1281, 1458, 1539, 1596, 1647, 1701, 1708, 2052, 2187, 2196, 2268, 2318, 2394, 2562, 2916, 3078, 3294, 3402, 3477, 3591, 3843, 4374, 4617, 4636, 4788, 4941, 5103, 5124, 6156, 6561, 6588, 6804, 6954, 7182, 7686, 8113, 8748, 9234, 9882, 10206, 10431, 10773, 11529, 13122, 13851, 13908, 14364, 14823, 15309, 15372, 16226, 18468, 19683, 19764, 20412, 20862, 21546, 23058, 24339, 26244, 27702, 29646, 30618, 31293, 32319, 32452, 34587, 39366, 41553, 41724, 43092, 44469, 45927, 46116, 48678, 55404, 59292, 61236, 62586, 64638, 69174, 73017, 78732, 83106, 88938, 91854, 93879, 96957, 97356, 103761, 124659, 125172, 129276, 133407, 137781, 138348, 146034, 166212, 177876, 183708, 187758, 193914, 207522, 219051, 249318, 266814, 275562, 281637, 290871, 292068, 311283, 373977, 375516, 387828, 400221, 415044, 438102, 498636, 533628, 551124, 563274, 581742, 622566, 657153, 747954, 800442, 844911, 872613, 876204, 933849, 1126548, 1163484, 1200663, 1245132, 1314306, 1495908, 1600884, 1689822, 1745226, 1867698, 1971459, 2401326, 2534733, 2617839, 2628612, 2801547, 3379644, 3490452, 3735396, 3942918, 4802652, 5069466, 5235678, 5603094, 5914377, 7604199, 7885836, 8404641, 10138932, 10471356, 11206188, 11828754, 15208398, 16809282, 17743131, 22812597, 23657508, 30416796, 33618564, 35486262, 45625194, 53229393, 70972524, 91250388, 106458786, 159688179, 212917572, 319376358, 638752716]

約数ペア:

[(1, 638752716), (2, 319376358), (3, 212917572), (4, 159688179), (6, 106458786), (7, 91250388), (9, 70972524), (12, 53229393), (14, 45625194), (18, 35486262), (19, 33618564), (21, 30416796), (27, 23657508), (28, 22812597), (36, 17743131), (38, 16809282), (42, 15208398), (54, 11828754), (57, 11206188), (61, 10471356), (63, 10138932), (76, 8404641), (81, 7885836), (84, 7604199), (108, 5914377), (114, 5603094), (122, 5235678), (126, 5069466), (133, 4802652), (162, 3942918), (171, 3735396), (183, 3490452), (189, 3379644), (228, 2801547), (243, 2628612), (244, 2617839), (252, 2534733), (266, 2401326), (324, 1971459), (342, 1867698), (366, 1745226), (378, 1689822), (399, 1600884), (427, 1495908), (486, 1314306), (513, 1245132), (532, 1200663), (549, 1163484), (567, 1126548), (684, 933849), (729, 876204), (732, 872613), (756, 844911), (798, 800442), (854, 747954), (972, 657153), (1026, 622566), (1098, 581742), (1134, 563274), (1159, 551124), (1197, 533628), (1281, 498636), (1458, 438102), (1539, 415044), (1596, 400221), (1647, 387828), (1701, 375516), (1708, 373977), (2052, 311283), (2187, 292068), (2196, 290871), (2268, 281637), (2318, 275562), (2394, 266814), (2562, 249318), (2916, 219051), (3078, 207522), (3294, 193914), (3402, 187758), (3477, 183708), (3591, 177876), (3843, 166212), (4374, 146034), (4617, 138348), (4636, 137781), (4788, 133407), (4941, 129276), (5103, 125172), (5124, 124659), (6156, 103761), (6561, 97356), (6588, 96957), (6804, 93879), (6954, 91854), (7182, 88938), (7686, 83106), (8113, 78732), (8748, 73017), (9234, 69174), (9882, 64638), (10206, 62586), (10431, 61236), (10773, 59292), (11529, 55404), (13122, 48678), (13851, 46116), (13908, 45927), (14364, 44469), (14823, 43092), (15309, 41724), (15372, 41553), (16226, 39366), (18468, 34587), (19683, 32452), (19764, 32319), (20412, 31293), (20862, 30618), (21546, 29646), (23058, 27702), (24339, 26244)]