218675984

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{10253}}^1$

素因数の和:10335

約数の個数: 40

約数和(自身を含む): 447566592

約数和(自身を除く): 228890608

約数列:

[1, 2, 4, 8, 16, 31, 43, 62, 86, 124, 172, 248, 344, 496, 688, 1333, 2666, 5332, 10253, 10664, 20506, 21328, 41012, 82024, 164048, 317843, 440879, 635686, 881758, 1271372, 1763516, 2542744, 3527032, 5085488, 7054064, 13667249, 27334498, 54668996, 109337992, 218675984]

約数ペア:

[(1, 218675984), (2, 109337992), (4, 54668996), (8, 27334498), (16, 13667249), (31, 7054064), (43, 5085488), (62, 3527032), (86, 2542744), (124, 1763516), (172, 1271372), (248, 881758), (344, 635686), (496, 440879), (688, 317843), (1333, 164048), (2666, 82024), (5332, 41012), (10253, 21328), (10664, 20506)]