2684980

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{149}}^1$

素因数の和:228

約数の個数: 48

約数和(自身を含む): 6123600

約数和(自身を除く): 3438620

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 53, 68, 85, 106, 149, 170, 212, 265, 298, 340, 530, 596, 745, 901, 1060, 1490, 1802, 2533, 2980, 3604, 4505, 5066, 7897, 9010, 10132, 12665, 15794, 18020, 25330, 31588, 39485, 50660, 78970, 134249, 157940, 268498, 536996, 671245, 1342490, 2684980]

約数ペア:

[(1, 2684980), (2, 1342490), (4, 671245), (5, 536996), (10, 268498), (17, 157940), (20, 134249), (34, 78970), (53, 50660), (68, 39485), (85, 31588), (106, 25330), (149, 18020), (170, 15794), (212, 12665), (265, 10132), (298, 9010), (340, 7897), (530, 5066), (596, 4505), (745, 3604), (901, 2980), (1060, 2533), (1490, 1802)]