840398468

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{337}}^1$

素因数の和:422

約数の個数: 144

約数和(自身を含む): 1995162624

約数和(自身を除く): 1154764156

約数列:

[1, 2, 4, 7, 13, 14, 17, 26, 28, 31, 34, 52, 62, 68, 91, 119, 124, 169, 182, 217, 221, 238, 337, 338, 364, 403, 434, 442, 476, 527, 674, 676, 806, 868, 884, 1054, 1183, 1348, 1547, 1612, 2108, 2359, 2366, 2821, 2873, 3094, 3689, 4381, 4718, 4732, 5239, 5642, 5729, 5746, 6188, 6851, 7378, 8762, 9436, 10447, 10478, 11284, 11458, 11492, 13702, 14756, 17524, 20111, 20894, 20956, 22916, 27404, 30667, 36673, 40103, 40222, 41788, 47957, 56953, 61334, 73129, 73346, 74477, 80206, 80444, 89063, 95914, 113906, 122668, 135811, 146258, 146692, 148954, 160412, 177599, 178126, 191828, 227812, 271622, 292516, 297908, 355198, 356252, 398671, 521339, 543244, 623441, 710396, 797342, 950677, 968201, 1042678, 1243193, 1246882, 1594684, 1765543, 1901354, 1936402, 2085356, 2308787, 2486386, 2493764, 3531086, 3802708, 3872804, 4617574, 4972772, 6777407, 7062172, 9235148, 12358801, 13554814, 16161509, 24717602, 27109628, 30014231, 32323018, 49435204, 60028462, 64646036, 120056924, 210099617, 420199234, 840398468]

約数ペア:

[(1, 840398468), (2, 420199234), (4, 210099617), (7, 120056924), (13, 64646036), (14, 60028462), (17, 49435204), (26, 32323018), (28, 30014231), (31, 27109628), (34, 24717602), (52, 16161509), (62, 13554814), (68, 12358801), (91, 9235148), (119, 7062172), (124, 6777407), (169, 4972772), (182, 4617574), (217, 3872804), (221, 3802708), (238, 3531086), (337, 2493764), (338, 2486386), (364, 2308787), (403, 2085356), (434, 1936402), (442, 1901354), (476, 1765543), (527, 1594684), (674, 1246882), (676, 1243193), (806, 1042678), (868, 968201), (884, 950677), (1054, 797342), (1183, 710396), (1348, 623441), (1547, 543244), (1612, 521339), (2108, 398671), (2359, 356252), (2366, 355198), (2821, 297908), (2873, 292516), (3094, 271622), (3689, 227812), (4381, 191828), (4718, 178126), (4732, 177599), (5239, 160412), (5642, 148954), (5729, 146692), (5746, 146258), (6188, 135811), (6851, 122668), (7378, 113906), (8762, 95914), (9436, 89063), (10447, 80444), (10478, 80206), (11284, 74477), (11458, 73346), (11492, 73129), (13702, 61334), (14756, 56953), (17524, 47957), (20111, 41788), (20894, 40222), (20956, 40103), (22916, 36673), (27404, 30667)]