18880190

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{53}}^1\times {\mathrm{727}}^1$

素因数の和:801

約数の個数: 48

約数和(自身を含む): 40334112

約数和(自身を除く): 21453922

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 53, 70, 98, 106, 245, 265, 371, 490, 530, 727, 742, 1454, 1855, 2597, 3635, 3710, 5089, 5194, 7270, 10178, 12985, 25445, 25970, 35623, 38531, 50890, 71246, 77062, 178115, 192655, 269717, 356230, 385310, 539434, 1348585, 1888019, 2697170, 3776038, 9440095, 18880190]

約数ペア:

[(1, 18880190), (2, 9440095), (5, 3776038), (7, 2697170), (10, 1888019), (14, 1348585), (35, 539434), (49, 385310), (53, 356230), (70, 269717), (98, 192655), (106, 178115), (245, 77062), (265, 71246), (371, 50890), (490, 38531), (530, 35623), (727, 25970), (742, 25445), (1454, 12985), (1855, 10178), (2597, 7270), (3635, 5194), (3710, 5089)]