16819840

素因数分解:

$2^7\times 5^1\times {\mathrm{41}}^1\times {\mathrm{641}}^1$

素因数の和:701

約数の個数: 64

約数和(自身を含む): 41254920

約数和(自身を除く): 24435080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 64, 80, 82, 128, 160, 164, 205, 320, 328, 410, 640, 641, 656, 820, 1282, 1312, 1640, 2564, 2624, 3205, 3280, 5128, 5248, 6410, 6560, 10256, 12820, 13120, 20512, 25640, 26240, 26281, 41024, 51280, 52562, 82048, 102560, 105124, 131405, 205120, 210248, 262810, 410240, 420496, 525620, 840992, 1051240, 1681984, 2102480, 3363968, 4204960, 8409920, 16819840]

約数ペア:

[(1, 16819840), (2, 8409920), (4, 4204960), (5, 3363968), (8, 2102480), (10, 1681984), (16, 1051240), (20, 840992), (32, 525620), (40, 420496), (41, 410240), (64, 262810), (80, 210248), (82, 205120), (128, 131405), (160, 105124), (164, 102560), (205, 82048), (320, 52562), (328, 51280), (410, 41024), (640, 26281), (641, 26240), (656, 25640), (820, 20512), (1282, 13120), (1312, 12820), (1640, 10256), (2564, 6560), (2624, 6410), (3205, 5248), (3280, 5128)]