18653060

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{191}}^1\times {\mathrm{257}}^1$

素因数の和:476

約数の個数: 48

約数和(自身を含む): 41610240

約数和(自身を除く): 22957180

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 191, 257, 380, 382, 514, 764, 955, 1028, 1285, 1910, 2570, 3629, 3820, 4883, 5140, 7258, 9766, 14516, 18145, 19532, 24415, 36290, 48830, 49087, 72580, 97660, 98174, 196348, 245435, 490870, 932653, 981740, 1865306, 3730612, 4663265, 9326530, 18653060]

約数ペア:

[(1, 18653060), (2, 9326530), (4, 4663265), (5, 3730612), (10, 1865306), (19, 981740), (20, 932653), (38, 490870), (76, 245435), (95, 196348), (190, 98174), (191, 97660), (257, 72580), (380, 49087), (382, 48830), (514, 36290), (764, 24415), (955, 19532), (1028, 18145), (1285, 14516), (1910, 9766), (2570, 7258), (3629, 5140), (3820, 4883)]