420825496

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{643}}^1$

素因数の和:729

約数の個数: 128

約数和(自身を含む): 1038643200

約数和(自身を除く): 617817704

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 29, 31, 52, 56, 58, 62, 91, 104, 116, 124, 182, 203, 217, 232, 248, 364, 377, 403, 406, 434, 643, 728, 754, 806, 812, 868, 899, 1286, 1508, 1612, 1624, 1736, 1798, 2572, 2639, 2821, 3016, 3224, 3596, 4501, 5144, 5278, 5642, 6293, 7192, 8359, 9002, 10556, 11284, 11687, 12586, 16718, 18004, 18647, 19933, 21112, 22568, 23374, 25172, 33436, 36008, 37294, 39866, 46748, 50344, 58513, 66872, 74588, 79732, 81809, 93496, 117026, 130529, 139531, 149176, 159464, 163618, 234052, 242411, 259129, 261058, 279062, 327236, 468104, 484822, 518258, 522116, 558124, 578057, 654472, 969644, 1036516, 1044232, 1116248, 1156114, 1696877, 1813903, 1939288, 2073032, 2312228, 3393754, 3627806, 4046399, 4624456, 6787508, 7255612, 7514741, 8092798, 13575016, 14511224, 15029482, 16185596, 30058964, 32371192, 52603187, 60117928, 105206374, 210412748, 420825496]

約数ペア:

[(1, 420825496), (2, 210412748), (4, 105206374), (7, 60117928), (8, 52603187), (13, 32371192), (14, 30058964), (26, 16185596), (28, 15029482), (29, 14511224), (31, 13575016), (52, 8092798), (56, 7514741), (58, 7255612), (62, 6787508), (91, 4624456), (104, 4046399), (116, 3627806), (124, 3393754), (182, 2312228), (203, 2073032), (217, 1939288), (232, 1813903), (248, 1696877), (364, 1156114), (377, 1116248), (403, 1044232), (406, 1036516), (434, 969644), (643, 654472), (728, 578057), (754, 558124), (806, 522116), (812, 518258), (868, 484822), (899, 468104), (1286, 327236), (1508, 279062), (1612, 261058), (1624, 259129), (1736, 242411), (1798, 234052), (2572, 163618), (2639, 159464), (2821, 149176), (3016, 139531), (3224, 130529), (3596, 117026), (4501, 93496), (5144, 81809), (5278, 79732), (5642, 74588), (6293, 66872), (7192, 58513), (8359, 50344), (9002, 46748), (10556, 39866), (11284, 37294), (11687, 36008), (12586, 33436), (16718, 25172), (18004, 23374), (18647, 22568), (19933, 21112)]