16961720

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{6329}}^1$

素因数の和:6407

約数の個数: 32

約数和(自身を含む): 38739600

約数和(自身を除く): 21777880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 134, 268, 335, 536, 670, 1340, 2680, 6329, 12658, 25316, 31645, 50632, 63290, 126580, 253160, 424043, 848086, 1696172, 2120215, 3392344, 4240430, 8480860, 16961720]

約数ペア:

[(1, 16961720), (2, 8480860), (4, 4240430), (5, 3392344), (8, 2120215), (10, 1696172), (20, 848086), (40, 424043), (67, 253160), (134, 126580), (268, 63290), (335, 50632), (536, 31645), (670, 25316), (1340, 12658), (2680, 6329)]