8021240

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{73}}^1$

素因数の和:192

約数の個数: 64

約数和(自身を含む): 19020960

約数和(自身を除く): 10999720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 67, 73, 82, 134, 146, 164, 205, 268, 292, 328, 335, 365, 410, 536, 584, 670, 730, 820, 1340, 1460, 1640, 2680, 2747, 2920, 2993, 4891, 5494, 5986, 9782, 10988, 11972, 13735, 14965, 19564, 21976, 23944, 24455, 27470, 29930, 39128, 48910, 54940, 59860, 97820, 109880, 119720, 195640, 200531, 401062, 802124, 1002655, 1604248, 2005310, 4010620, 8021240]

約数ペア:

[(1, 8021240), (2, 4010620), (4, 2005310), (5, 1604248), (8, 1002655), (10, 802124), (20, 401062), (40, 200531), (41, 195640), (67, 119720), (73, 109880), (82, 97820), (134, 59860), (146, 54940), (164, 48910), (205, 39128), (268, 29930), (292, 27470), (328, 24455), (335, 23944), (365, 21976), (410, 19564), (536, 14965), (584, 13735), (670, 11972), (730, 10988), (820, 9782), (1340, 5986), (1460, 5494), (1640, 4891), (2680, 2993), (2747, 2920)]