19740416

素因数分解:

$2^8\times {\mathrm{29}}^1\times {\mathrm{2659}}^1$

素因数の和:2704

約数の個数: 36

約数和(自身を含む): 40777800

約数和(自身を除く): 21037384

約数列:

[1, 2, 4, 8, 16, 29, 32, 58, 64, 116, 128, 232, 256, 464, 928, 1856, 2659, 3712, 5318, 7424, 10636, 21272, 42544, 77111, 85088, 154222, 170176, 308444, 340352, 616888, 680704, 1233776, 2467552, 4935104, 9870208, 19740416]

約数ペア:

[(1, 19740416), (2, 9870208), (4, 4935104), (8, 2467552), (16, 1233776), (29, 680704), (32, 616888), (58, 340352), (64, 308444), (116, 170176), (128, 154222), (232, 85088), (256, 77111), (464, 42544), (928, 21272), (1856, 10636), (2659, 7424), (3712, 5318)]