196236520

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{271}}^1\times {\mathrm{421}}^1$

素因数の和:746

約数の個数: 64

約数和(自身を含む): 454544640

約数和(自身を除く): 258308120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 271, 344, 421, 430, 542, 842, 860, 1084, 1355, 1684, 1720, 2105, 2168, 2710, 3368, 4210, 5420, 8420, 10840, 11653, 16840, 18103, 23306, 36206, 46612, 58265, 72412, 90515, 93224, 114091, 116530, 144824, 181030, 228182, 233060, 362060, 456364, 466120, 570455, 724120, 912728, 1140910, 2281820, 4563640, 4905913, 9811826, 19623652, 24529565, 39247304, 49059130, 98118260, 196236520]

約数ペア:

[(1, 196236520), (2, 98118260), (4, 49059130), (5, 39247304), (8, 24529565), (10, 19623652), (20, 9811826), (40, 4905913), (43, 4563640), (86, 2281820), (172, 1140910), (215, 912728), (271, 724120), (344, 570455), (421, 466120), (430, 456364), (542, 362060), (842, 233060), (860, 228182), (1084, 181030), (1355, 144824), (1684, 116530), (1720, 114091), (2105, 93224), (2168, 90515), (2710, 72412), (3368, 58265), (4210, 46612), (5420, 36206), (8420, 23306), (10840, 18103), (11653, 16840)]