640747488

素因数分解:

$2^5\times 3^1\times {\mathrm{19}}^1\times {\mathrm{351287}}^1$

素因数の和:351319

約数の個数: 48

約数和(自身を含む): 1770491520

約数和(自身を除く): 1129744032

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 19, 24, 32, 38, 48, 57, 76, 96, 114, 152, 228, 304, 456, 608, 912, 1824, 351287, 702574, 1053861, 1405148, 2107722, 2810296, 4215444, 5620592, 6674453, 8430888, 11241184, 13348906, 16861776, 20023359, 26697812, 33723552, 40046718, 53395624, 80093436, 106791248, 160186872, 213582496, 320373744, 640747488]

約数ペア:

[(1, 640747488), (2, 320373744), (3, 213582496), (4, 160186872), (6, 106791248), (8, 80093436), (12, 53395624), (16, 40046718), (19, 33723552), (24, 26697812), (32, 20023359), (38, 16861776), (48, 13348906), (57, 11241184), (76, 8430888), (96, 6674453), (114, 5620592), (152, 4215444), (228, 2810296), (304, 2107722), (456, 1405148), (608, 1053861), (912, 702574), (1824, 351287)]