21953960

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{487}}^1$

素因数の和:535

約数の個数: 96

約数和(自身を含む): 60082560

約数和(自身を除く): 38128600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 46, 49, 56, 70, 92, 98, 115, 140, 161, 184, 196, 230, 245, 280, 322, 392, 460, 487, 490, 644, 805, 920, 974, 980, 1127, 1288, 1610, 1948, 1960, 2254, 2435, 3220, 3409, 3896, 4508, 4870, 5635, 6440, 6818, 9016, 9740, 11201, 11270, 13636, 17045, 19480, 22402, 22540, 23863, 27272, 34090, 44804, 45080, 47726, 56005, 68180, 78407, 89608, 95452, 112010, 119315, 136360, 156814, 190904, 224020, 238630, 313628, 392035, 448040, 477260, 548849, 627256, 784070, 954520, 1097698, 1568140, 2195396, 2744245, 3136280, 4390792, 5488490, 10976980, 21953960]

約数ペア:

[(1, 21953960), (2, 10976980), (4, 5488490), (5, 4390792), (7, 3136280), (8, 2744245), (10, 2195396), (14, 1568140), (20, 1097698), (23, 954520), (28, 784070), (35, 627256), (40, 548849), (46, 477260), (49, 448040), (56, 392035), (70, 313628), (92, 238630), (98, 224020), (115, 190904), (140, 156814), (161, 136360), (184, 119315), (196, 112010), (230, 95452), (245, 89608), (280, 78407), (322, 68180), (392, 56005), (460, 47726), (487, 45080), (490, 44804), (644, 34090), (805, 27272), (920, 23863), (974, 22540), (980, 22402), (1127, 19480), (1288, 17045), (1610, 13636), (1948, 11270), (1960, 11201), (2254, 9740), (2435, 9016), (3220, 6818), (3409, 6440), (3896, 5635), (4508, 4870)]