20871759844

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{271}}^1\times {\mathrm{569}}^1$

素因数の和:1013

約数の個数: 96

約数和(自身を含む): 41935219200

約数和(自身を除く): 21063459356

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 76, 137, 247, 271, 274, 494, 542, 548, 569, 988, 1084, 1138, 1781, 2276, 2603, 3523, 3562, 5149, 5206, 7046, 7124, 7397, 10298, 10412, 10811, 14092, 14794, 20596, 21622, 29588, 33839, 37127, 43244, 66937, 67678, 74254, 77953, 133874, 135356, 140543, 148508, 154199, 155906, 267748, 281086, 308398, 311812, 482651, 562172, 616796, 705413, 965302, 1013389, 1410826, 1481107, 1930604, 2004587, 2026778, 2821652, 2929781, 2962214, 4009174, 4053556, 5859562, 5924428, 8018348, 9170369, 11719124, 18340738, 19254391, 21125263, 36681476, 38087153, 38508782, 42250526, 76174306, 77017564, 84501052, 152348612, 274628419, 401379997, 549256838, 802759994, 1098513676, 1605519988, 5217939961, 10435879922, 20871759844]

約数ペア:

[(1, 20871759844), (2, 10435879922), (4, 5217939961), (13, 1605519988), (19, 1098513676), (26, 802759994), (38, 549256838), (52, 401379997), (76, 274628419), (137, 152348612), (247, 84501052), (271, 77017564), (274, 76174306), (494, 42250526), (542, 38508782), (548, 38087153), (569, 36681476), (988, 21125263), (1084, 19254391), (1138, 18340738), (1781, 11719124), (2276, 9170369), (2603, 8018348), (3523, 5924428), (3562, 5859562), (5149, 4053556), (5206, 4009174), (7046, 2962214), (7124, 2929781), (7397, 2821652), (10298, 2026778), (10412, 2004587), (10811, 1930604), (14092, 1481107), (14794, 1410826), (20596, 1013389), (21622, 965302), (29588, 705413), (33839, 616796), (37127, 562172), (43244, 482651), (66937, 311812), (67678, 308398), (74254, 281086), (77953, 267748), (133874, 155906), (135356, 154199), (140543, 148508)]