18191750260

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{1069}}^1\times {\mathrm{2357}}^1$

素因数の和:3473

約数の個数: 72

約数和(自身を含む): 40374006120

約数和(自身を除く): 22182255860

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 361, 380, 722, 1069, 1444, 1805, 2138, 2357, 3610, 4276, 4714, 5345, 7220, 9428, 10690, 11785, 20311, 21380, 23570, 40622, 44783, 47140, 81244, 89566, 101555, 179132, 203110, 223915, 385909, 406220, 447830, 771818, 850877, 895660, 1543636, 1701754, 1929545, 2519633, 3403508, 3859090, 4254385, 5039266, 7718180, 8508770, 10078532, 12598165, 17017540, 25196330, 47873027, 50392660, 95746054, 191492108, 239365135, 478730270, 909587513, 957460540, 1819175026, 3638350052, 4547937565, 9095875130, 18191750260]

約数ペア:

[(1, 18191750260), (2, 9095875130), (4, 4547937565), (5, 3638350052), (10, 1819175026), (19, 957460540), (20, 909587513), (38, 478730270), (76, 239365135), (95, 191492108), (190, 95746054), (361, 50392660), (380, 47873027), (722, 25196330), (1069, 17017540), (1444, 12598165), (1805, 10078532), (2138, 8508770), (2357, 7718180), (3610, 5039266), (4276, 4254385), (4714, 3859090), (5345, 3403508), (7220, 2519633), (9428, 1929545), (10690, 1701754), (11785, 1543636), (20311, 895660), (21380, 850877), (23570, 771818), (40622, 447830), (44783, 406220), (47140, 385909), (81244, 223915), (89566, 203110), (101555, 179132)]