51100120

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{947}}^1$

素因数の和:1048

約数の個数: 64

約数和(自身を含む): 122860800

約数和(自身を除く): 71760680

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 71, 76, 95, 142, 152, 190, 284, 355, 380, 568, 710, 760, 947, 1349, 1420, 1894, 2698, 2840, 3788, 4735, 5396, 6745, 7576, 9470, 10792, 13490, 17993, 18940, 26980, 35986, 37880, 53960, 67237, 71972, 89965, 134474, 143944, 179930, 268948, 336185, 359860, 537896, 672370, 719720, 1277503, 1344740, 2555006, 2689480, 5110012, 6387515, 10220024, 12775030, 25550060, 51100120]

約数ペア:

[(1, 51100120), (2, 25550060), (4, 12775030), (5, 10220024), (8, 6387515), (10, 5110012), (19, 2689480), (20, 2555006), (38, 1344740), (40, 1277503), (71, 719720), (76, 672370), (95, 537896), (142, 359860), (152, 336185), (190, 268948), (284, 179930), (355, 143944), (380, 134474), (568, 89965), (710, 71972), (760, 67237), (947, 53960), (1349, 37880), (1420, 35986), (1894, 26980), (2698, 18940), (2840, 17993), (3788, 13490), (4735, 10792), (5396, 9470), (6745, 7576)]