218781635

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{151}}^1\times {\mathrm{293}}^1$

素因数の和:515

約数の個数: 32

約数和(自身を含む): 283143168

約数和(自身を除く): 64361533

約数列:

[1, 5, 23, 43, 115, 151, 215, 293, 755, 989, 1465, 3473, 4945, 6493, 6739, 12599, 17365, 32465, 33695, 44243, 62995, 149339, 221215, 289777, 746695, 1017589, 1448885, 1902449, 5087945, 9512245, 43756327, 218781635]

約数ペア:

[(1, 218781635), (5, 43756327), (23, 9512245), (43, 5087945), (115, 1902449), (151, 1448885), (215, 1017589), (293, 746695), (755, 289777), (989, 221215), (1465, 149339), (3473, 62995), (4945, 44243), (6493, 33695), (6739, 32465), (12599, 17365)]