27790900

素因数分解:

$2^2\times 5^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{281}}^1$

素因数の和:361

約数の個数: 72

約数和(自身を含む): 64620864

約数和(自身を除く): 36829964

約数列:

[1, 2, 4, 5, 10, 20, 23, 25, 43, 46, 50, 86, 92, 100, 115, 172, 215, 230, 281, 430, 460, 562, 575, 860, 989, 1075, 1124, 1150, 1405, 1978, 2150, 2300, 2810, 3956, 4300, 4945, 5620, 6463, 7025, 9890, 12083, 12926, 14050, 19780, 24166, 24725, 25852, 28100, 32315, 48332, 49450, 60415, 64630, 98900, 120830, 129260, 161575, 241660, 277909, 302075, 323150, 555818, 604150, 646300, 1111636, 1208300, 1389545, 2779090, 5558180, 6947725, 13895450, 27790900]

約数ペア:

[(1, 27790900), (2, 13895450), (4, 6947725), (5, 5558180), (10, 2779090), (20, 1389545), (23, 1208300), (25, 1111636), (43, 646300), (46, 604150), (50, 555818), (86, 323150), (92, 302075), (100, 277909), (115, 241660), (172, 161575), (215, 129260), (230, 120830), (281, 98900), (430, 64630), (460, 60415), (562, 49450), (575, 48332), (860, 32315), (989, 28100), (1075, 25852), (1124, 24725), (1150, 24166), (1405, 19780), (1978, 14050), (2150, 12926), (2300, 12083), (2810, 9890), (3956, 7025), (4300, 6463), (4945, 5620)]