66869120

素因数分解:

$2^7\times 5^1\times {\mathrm{163}}^1\times {\mathrm{641}}^1$

素因数の和:823

約数の個数: 64

約数和(自身を含む): 161090640

約数和(自身を除く): 94221520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 163, 320, 326, 640, 641, 652, 815, 1282, 1304, 1630, 2564, 2608, 3205, 3260, 5128, 5216, 6410, 6520, 10256, 10432, 12820, 13040, 20512, 20864, 25640, 26080, 41024, 51280, 52160, 82048, 102560, 104320, 104483, 205120, 208966, 410240, 417932, 522415, 835864, 1044830, 1671728, 2089660, 3343456, 4179320, 6686912, 8358640, 13373824, 16717280, 33434560, 66869120]

約数ペア:

[(1, 66869120), (2, 33434560), (4, 16717280), (5, 13373824), (8, 8358640), (10, 6686912), (16, 4179320), (20, 3343456), (32, 2089660), (40, 1671728), (64, 1044830), (80, 835864), (128, 522415), (160, 417932), (163, 410240), (320, 208966), (326, 205120), (640, 104483), (641, 104320), (652, 102560), (815, 82048), (1282, 52160), (1304, 51280), (1630, 41024), (2564, 26080), (2608, 25640), (3205, 20864), (3260, 20512), (5128, 13040), (5216, 12820), (6410, 10432), (6520, 10256)]