159542120

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{128663}}^1$

素因数の和:128705

約数の個数: 32

約数和(自身を含む): 370552320

約数和(自身を除く): 211010200

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 128663, 257326, 514652, 643315, 1029304, 1286630, 2573260, 3988553, 5146520, 7977106, 15954212, 19942765, 31908424, 39885530, 79771060, 159542120]

約数ペア:

[(1, 159542120), (2, 79771060), (4, 39885530), (5, 31908424), (8, 19942765), (10, 15954212), (20, 7977106), (31, 5146520), (40, 3988553), (62, 2573260), (124, 1286630), (155, 1029304), (248, 643315), (310, 514652), (620, 257326), (1240, 128663)]