7872760

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{907}}^1$

素因数の和:956

約数の個数: 64

約数和(自身を含む): 20920320

約数和(自身を除く): 13047560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 70, 124, 140, 155, 217, 248, 280, 310, 434, 620, 868, 907, 1085, 1240, 1736, 1814, 2170, 3628, 4340, 4535, 6349, 7256, 8680, 9070, 12698, 18140, 25396, 28117, 31745, 36280, 50792, 56234, 63490, 112468, 126980, 140585, 196819, 224936, 253960, 281170, 393638, 562340, 787276, 984095, 1124680, 1574552, 1968190, 3936380, 7872760]

約数ペア:

[(1, 7872760), (2, 3936380), (4, 1968190), (5, 1574552), (7, 1124680), (8, 984095), (10, 787276), (14, 562340), (20, 393638), (28, 281170), (31, 253960), (35, 224936), (40, 196819), (56, 140585), (62, 126980), (70, 112468), (124, 63490), (140, 56234), (155, 50792), (217, 36280), (248, 31745), (280, 28117), (310, 25396), (434, 18140), (620, 12698), (868, 9070), (907, 8680), (1085, 7256), (1240, 6349), (1736, 4535), (1814, 4340), (2170, 3628)]