20797384972

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{227}}^1\times {\mathrm{877}}^1$

素因数の和:1176

約数の個数: 144

約数和(自身を含む): 46965568608

約数和(自身を除く): 26168183636

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 41, 49, 52, 82, 91, 98, 164, 182, 196, 227, 287, 364, 454, 533, 574, 637, 877, 908, 1066, 1148, 1274, 1589, 1754, 2009, 2132, 2548, 2951, 3178, 3508, 3731, 4018, 5902, 6139, 6356, 7462, 8036, 9307, 11123, 11401, 11804, 12278, 14924, 18614, 20657, 22246, 22802, 24556, 26117, 35957, 37228, 41314, 42973, 44492, 45604, 52234, 65149, 71914, 79807, 82628, 85946, 104468, 120991, 130298, 143828, 144599, 159614, 171892, 199079, 241982, 251699, 260596, 289198, 319228, 398158, 456043, 467441, 483964, 503398, 558649, 578396, 796316, 846937, 912086, 934882, 1006796, 1117298, 1393553, 1693874, 1761893, 1824172, 1869764, 2234596, 2588027, 2787106, 3272087, 3387748, 3523786, 5176054, 5574212, 5928559, 6544174, 7047572, 8162239, 9754871, 10352108, 11857118, 13088348, 16324478, 18116189, 19509742, 22904609, 23714236, 32648956, 36232378, 39019484, 45809218, 57135673, 72464756, 91618436, 106109107, 114271346, 126813323, 212218214, 228542692, 253626646, 399949711, 424436428, 507253292, 742763749, 799899422, 1485527498, 1599798844, 2971054996, 5199346243, 10398692486, 20797384972]

約数ペア:

[(1, 20797384972), (2, 10398692486), (4, 5199346243), (7, 2971054996), (13, 1599798844), (14, 1485527498), (26, 799899422), (28, 742763749), (41, 507253292), (49, 424436428), (52, 399949711), (82, 253626646), (91, 228542692), (98, 212218214), (164, 126813323), (182, 114271346), (196, 106109107), (227, 91618436), (287, 72464756), (364, 57135673), (454, 45809218), (533, 39019484), (574, 36232378), (637, 32648956), (877, 23714236), (908, 22904609), (1066, 19509742), (1148, 18116189), (1274, 16324478), (1589, 13088348), (1754, 11857118), (2009, 10352108), (2132, 9754871), (2548, 8162239), (2951, 7047572), (3178, 6544174), (3508, 5928559), (3731, 5574212), (4018, 5176054), (5902, 3523786), (6139, 3387748), (6356, 3272087), (7462, 2787106), (8036, 2588027), (9307, 2234596), (11123, 1869764), (11401, 1824172), (11804, 1761893), (12278, 1693874), (14924, 1393553), (18614, 1117298), (20657, 1006796), (22246, 934882), (22802, 912086), (24556, 846937), (26117, 796316), (35957, 578396), (37228, 558649), (41314, 503398), (42973, 483964), (44492, 467441), (45604, 456043), (52234, 398158), (65149, 319228), (71914, 289198), (79807, 260596), (82628, 251699), (85946, 241982), (104468, 199079), (120991, 171892), (130298, 159614), (143828, 144599)]