20894154484

素因数分解:

$2^2\times 7^2\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{151}}^1\times {\mathrm{257}}^1$

素因数の和:534

約数の個数: 144

約数和(自身を含む): 44688357504

約数和(自身を除く): 23794203020

約数列:

[1, 2, 4, 7, 14, 28, 41, 49, 67, 82, 98, 134, 151, 164, 196, 257, 268, 287, 302, 469, 514, 574, 604, 938, 1028, 1057, 1148, 1799, 1876, 2009, 2114, 2747, 3283, 3598, 4018, 4228, 5494, 6191, 6566, 7196, 7399, 8036, 10117, 10537, 10988, 12382, 12593, 13132, 14798, 17219, 19229, 20234, 21074, 24764, 25186, 29596, 34438, 38458, 38807, 40468, 42148, 43337, 50372, 68876, 70819, 73759, 76916, 77614, 86674, 120533, 134603, 141638, 147518, 155228, 173348, 241066, 269206, 271649, 283276, 295036, 303359, 414797, 482132, 495733, 516313, 538412, 543298, 606718, 705979, 829594, 843731, 991466, 1032626, 1086596, 1213436, 1411958, 1591087, 1659188, 1687462, 1901543, 1982932, 2065252, 2600069, 2823916, 2903579, 3182174, 3374924, 3803086, 4941853, 5200138, 5807158, 6364348, 7606172, 9883706, 10400276, 11137609, 11614316, 18200483, 19767412, 20325053, 22275218, 34592971, 36400966, 40650106, 44550436, 69185942, 72801932, 77963263, 81300212, 106602829, 127403381, 138371884, 155926526, 213205658, 254806762, 311853052, 426411316, 509613524, 746219803, 1492439606, 2984879212, 5223538621, 10447077242, 20894154484]

約数ペア:

[(1, 20894154484), (2, 10447077242), (4, 5223538621), (7, 2984879212), (14, 1492439606), (28, 746219803), (41, 509613524), (49, 426411316), (67, 311853052), (82, 254806762), (98, 213205658), (134, 155926526), (151, 138371884), (164, 127403381), (196, 106602829), (257, 81300212), (268, 77963263), (287, 72801932), (302, 69185942), (469, 44550436), (514, 40650106), (574, 36400966), (604, 34592971), (938, 22275218), (1028, 20325053), (1057, 19767412), (1148, 18200483), (1799, 11614316), (1876, 11137609), (2009, 10400276), (2114, 9883706), (2747, 7606172), (3283, 6364348), (3598, 5807158), (4018, 5200138), (4228, 4941853), (5494, 3803086), (6191, 3374924), (6566, 3182174), (7196, 2903579), (7399, 2823916), (8036, 2600069), (10117, 2065252), (10537, 1982932), (10988, 1901543), (12382, 1687462), (12593, 1659188), (13132, 1591087), (14798, 1411958), (17219, 1213436), (19229, 1086596), (20234, 1032626), (21074, 991466), (24764, 843731), (25186, 829594), (29596, 705979), (34438, 606718), (38458, 543298), (38807, 538412), (40468, 516313), (42148, 495733), (43337, 482132), (50372, 414797), (68876, 303359), (70819, 295036), (73759, 283276), (76916, 271649), (77614, 269206), (86674, 241066), (120533, 173348), (134603, 155228), (141638, 147518)]