54390055

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{647}}^1$

素因数の和:735

約数の個数: 32

約数和(自身を含む): 73903104

約数和(自身を除く): 19513049

約数列:

[1, 5, 17, 23, 43, 85, 115, 215, 391, 647, 731, 989, 1955, 3235, 3655, 4945, 10999, 14881, 16813, 27821, 54995, 74405, 84065, 139105, 252977, 472957, 639883, 1264885, 2364785, 3199415, 10878011, 54390055]

約数ペア:

[(1, 54390055), (5, 10878011), (17, 3199415), (23, 2364785), (43, 1264885), (85, 639883), (115, 472957), (215, 252977), (391, 139105), (647, 84065), (731, 74405), (989, 54995), (1955, 27821), (3235, 16813), (3655, 14881), (4945, 10999)]