20826486160

素因数分解:

$2^4\times 5^1\times {\mathrm{83}}^1\times {\mathrm{127}}^1\times {\mathrm{24697}}^1$

素因数の和:24920

約数の個数: 80

約数和(自身を含む): 49392838656

約数和(自身を除く): 28566352496

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 83, 127, 166, 254, 332, 415, 508, 635, 664, 830, 1016, 1270, 1328, 1660, 2032, 2540, 3320, 5080, 6640, 10160, 10541, 21082, 24697, 42164, 49394, 52705, 84328, 98788, 105410, 123485, 168656, 197576, 210820, 246970, 395152, 421640, 493940, 843280, 987880, 1975760, 2049851, 3136519, 4099702, 6273038, 8199404, 10249255, 12546076, 15682595, 16398808, 20498510, 25092152, 31365190, 32797616, 40997020, 50184304, 62730380, 81994040, 125460760, 163988080, 250921520, 260331077, 520662154, 1041324308, 1301655385, 2082648616, 2603310770, 4165297232, 5206621540, 10413243080, 20826486160]

約数ペア:

[(1, 20826486160), (2, 10413243080), (4, 5206621540), (5, 4165297232), (8, 2603310770), (10, 2082648616), (16, 1301655385), (20, 1041324308), (40, 520662154), (80, 260331077), (83, 250921520), (127, 163988080), (166, 125460760), (254, 81994040), (332, 62730380), (415, 50184304), (508, 40997020), (635, 32797616), (664, 31365190), (830, 25092152), (1016, 20498510), (1270, 16398808), (1328, 15682595), (1660, 12546076), (2032, 10249255), (2540, 8199404), (3320, 6273038), (5080, 4099702), (6640, 3136519), (10160, 2049851), (10541, 1975760), (21082, 987880), (24697, 843280), (42164, 493940), (49394, 421640), (52705, 395152), (84328, 246970), (98788, 210820), (105410, 197576), (123485, 168656)]