7250898040

素因数分解:

$2^3\times 5^1\times {\mathrm{251}}^1\times {\mathrm{401}}^1\times {\mathrm{1801}}^1$

素因数の和:2464

約数の個数: 64

約数和(自身を含む): 16429482720

約数和(自身を除く): 9178584680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 251, 401, 502, 802, 1004, 1255, 1604, 1801, 2005, 2008, 2510, 3208, 3602, 4010, 5020, 7204, 8020, 9005, 10040, 14408, 16040, 18010, 36020, 72040, 100651, 201302, 402604, 452051, 503255, 722201, 805208, 904102, 1006510, 1444402, 1808204, 2013020, 2260255, 2888804, 3611005, 3616408, 4026040, 4520510, 5777608, 7222010, 9041020, 14444020, 18082040, 28888040, 181272451, 362544902, 725089804, 906362255, 1450179608, 1812724510, 3625449020, 7250898040]

約数ペア:

[(1, 7250898040), (2, 3625449020), (4, 1812724510), (5, 1450179608), (8, 906362255), (10, 725089804), (20, 362544902), (40, 181272451), (251, 28888040), (401, 18082040), (502, 14444020), (802, 9041020), (1004, 7222010), (1255, 5777608), (1604, 4520510), (1801, 4026040), (2005, 3616408), (2008, 3611005), (2510, 2888804), (3208, 2260255), (3602, 2013020), (4010, 1808204), (5020, 1444402), (7204, 1006510), (8020, 904102), (9005, 805208), (10040, 722201), (14408, 503255), (16040, 452051), (18010, 402604), (36020, 201302), (72040, 100651)]