20053100

素因数分解:

$2^2\times 5^2\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{73}}^1$

素因数の和:195

約数の個数: 72

約数和(自身を含む): 45861648

約数和(自身を除く): 25808548

約数列:

[1, 2, 4, 5, 10, 20, 25, 41, 50, 67, 73, 82, 100, 134, 146, 164, 205, 268, 292, 335, 365, 410, 670, 730, 820, 1025, 1340, 1460, 1675, 1825, 2050, 2747, 2993, 3350, 3650, 4100, 4891, 5494, 5986, 6700, 7300, 9782, 10988, 11972, 13735, 14965, 19564, 24455, 27470, 29930, 48910, 54940, 59860, 68675, 74825, 97820, 122275, 137350, 149650, 200531, 244550, 274700, 299300, 401062, 489100, 802124, 1002655, 2005310, 4010620, 5013275, 10026550, 20053100]

約数ペア:

[(1, 20053100), (2, 10026550), (4, 5013275), (5, 4010620), (10, 2005310), (20, 1002655), (25, 802124), (41, 489100), (50, 401062), (67, 299300), (73, 274700), (82, 244550), (100, 200531), (134, 149650), (146, 137350), (164, 122275), (205, 97820), (268, 74825), (292, 68675), (335, 59860), (365, 54940), (410, 48910), (670, 29930), (730, 27470), (820, 24455), (1025, 19564), (1340, 14965), (1460, 13735), (1675, 11972), (1825, 10988), (2050, 9782), (2747, 7300), (2993, 6700), (3350, 5986), (3650, 5494), (4100, 4891)]