66643120

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{19373}}^1$

素因数の和:19429

約数の個数: 40

約数和(自身を含む): 158556816

約数和(自身を除く): 91913696

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 19373, 38746, 77492, 96865, 154984, 193730, 309968, 387460, 774920, 833039, 1549840, 1666078, 3332156, 4165195, 6664312, 8330390, 13328624, 16660780, 33321560, 66643120]

約数ペア:

[(1, 66643120), (2, 33321560), (4, 16660780), (5, 13328624), (8, 8330390), (10, 6664312), (16, 4165195), (20, 3332156), (40, 1666078), (43, 1549840), (80, 833039), (86, 774920), (172, 387460), (215, 309968), (344, 193730), (430, 154984), (688, 96865), (860, 77492), (1720, 38746), (3440, 19373)]