979668880

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{644519}}^1$

素因数の和:644551

約数の個数: 40

約数和(自身を含む): 2397614400

約数和(自身を除く): 1417945520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 644519, 1289038, 2578076, 3222595, 5156152, 6445190, 10312304, 12245861, 12890380, 24491722, 25780760, 48983444, 51561520, 61229305, 97966888, 122458610, 195933776, 244917220, 489834440, 979668880]

約数ペア:

[(1, 979668880), (2, 489834440), (4, 244917220), (5, 195933776), (8, 122458610), (10, 97966888), (16, 61229305), (19, 51561520), (20, 48983444), (38, 25780760), (40, 24491722), (76, 12890380), (80, 12245861), (95, 10312304), (152, 6445190), (190, 5156152), (304, 3222595), (380, 2578076), (760, 1289038), (1520, 644519)]