216572945

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{2357}}^1$

素因数の和:2449

約数の個数: 32

約数和(自身を含む): 293372928

約数和(自身を除く): 76799983

約数列:

[1, 5, 17, 23, 47, 85, 115, 235, 391, 799, 1081, 1955, 2357, 3995, 5405, 11785, 18377, 40069, 54211, 91885, 110779, 200345, 271055, 553895, 921587, 1883243, 2547917, 4607935, 9416215, 12739585, 43314589, 216572945]

約数ペア:

[(1, 216572945), (5, 43314589), (17, 12739585), (23, 9416215), (47, 4607935), (85, 2547917), (115, 1883243), (235, 921587), (391, 553895), (799, 271055), (1081, 200345), (1955, 110779), (2357, 91885), (3995, 54211), (5405, 40069), (11785, 18377)]