80442980

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{197}}^1\times {\mathrm{1201}}^1$

素因数の和:1424

約数の個数: 48

約数和(自身を含む): 179924976

約数和(自身を除く): 99481996

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 197, 340, 394, 788, 985, 1201, 1970, 2402, 3349, 3940, 4804, 6005, 6698, 12010, 13396, 16745, 20417, 24020, 33490, 40834, 66980, 81668, 102085, 204170, 236597, 408340, 473194, 946388, 1182985, 2365970, 4022149, 4731940, 8044298, 16088596, 20110745, 40221490, 80442980]

約数ペア:

[(1, 80442980), (2, 40221490), (4, 20110745), (5, 16088596), (10, 8044298), (17, 4731940), (20, 4022149), (34, 2365970), (68, 1182985), (85, 946388), (170, 473194), (197, 408340), (340, 236597), (394, 204170), (788, 102085), (985, 81668), (1201, 66980), (1970, 40834), (2402, 33490), (3349, 24020), (3940, 20417), (4804, 16745), (6005, 13396), (6698, 12010)]