20825520

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{4567}}^1$

素因数の和:4602

約数の個数: 80

約数和(自身を含む): 67971840

約数和(自身を除く): 47146320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 38, 40, 48, 57, 60, 76, 80, 95, 114, 120, 152, 190, 228, 240, 285, 304, 380, 456, 570, 760, 912, 1140, 1520, 2280, 4560, 4567, 9134, 13701, 18268, 22835, 27402, 36536, 45670, 54804, 68505, 73072, 86773, 91340, 109608, 137010, 173546, 182680, 219216, 260319, 274020, 347092, 365360, 433865, 520638, 548040, 694184, 867730, 1041276, 1096080, 1301595, 1388368, 1735460, 2082552, 2603190, 3470920, 4165104, 5206380, 6941840, 10412760, 20825520]

約数ペア:

[(1, 20825520), (2, 10412760), (3, 6941840), (4, 5206380), (5, 4165104), (6, 3470920), (8, 2603190), (10, 2082552), (12, 1735460), (15, 1388368), (16, 1301595), (19, 1096080), (20, 1041276), (24, 867730), (30, 694184), (38, 548040), (40, 520638), (48, 433865), (57, 365360), (60, 347092), (76, 274020), (80, 260319), (95, 219216), (114, 182680), (120, 173546), (152, 137010), (190, 109608), (228, 91340), (240, 86773), (285, 73072), (304, 68505), (380, 54804), (456, 45670), (570, 36536), (760, 27402), (912, 22835), (1140, 18268), (1520, 13701), (2280, 9134), (4560, 4567)]