31378648

素因数分解:

$2^3\times 7^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1\times {\mathrm{157}}^1$

素因数の和:296

約数の個数: 64

約数和(自身を含む): 70076160

約数和(自身を除く): 38697512

約数列:

[1, 2, 4, 7, 8, 14, 28, 43, 56, 83, 86, 157, 166, 172, 301, 314, 332, 344, 581, 602, 628, 664, 1099, 1162, 1204, 1256, 2198, 2324, 2408, 3569, 4396, 4648, 6751, 7138, 8792, 13031, 13502, 14276, 24983, 26062, 27004, 28552, 47257, 49966, 52124, 54008, 91217, 94514, 99932, 104248, 182434, 189028, 199864, 364868, 378056, 560333, 729736, 1120666, 2241332, 3922331, 4482664, 7844662, 15689324, 31378648]

約数ペア:

[(1, 31378648), (2, 15689324), (4, 7844662), (7, 4482664), (8, 3922331), (14, 2241332), (28, 1120666), (43, 729736), (56, 560333), (83, 378056), (86, 364868), (157, 199864), (166, 189028), (172, 182434), (301, 104248), (314, 99932), (332, 94514), (344, 91217), (581, 54008), (602, 52124), (628, 49966), (664, 47257), (1099, 28552), (1162, 27004), (1204, 26062), (1256, 24983), (2198, 14276), (2324, 13502), (2408, 13031), (3569, 8792), (4396, 7138), (4648, 6751)]