40206520

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{7673}}^1$

素因数の和:7815

約数の個数: 32

約数和(自身を含む): 91167120

約数和(自身を除く): 50960600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 262, 524, 655, 1048, 1310, 2620, 5240, 7673, 15346, 30692, 38365, 61384, 76730, 153460, 306920, 1005163, 2010326, 4020652, 5025815, 8041304, 10051630, 20103260, 40206520]

約数ペア:

[(1, 40206520), (2, 20103260), (4, 10051630), (5, 8041304), (8, 5025815), (10, 4020652), (20, 2010326), (40, 1005163), (131, 306920), (262, 153460), (524, 76730), (655, 61384), (1048, 38365), (1310, 30692), (2620, 15346), (5240, 7673)]