164487940

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{11699}}^1$

素因数の和:11764

約数の個数: 48

約数和(自身を含む): 373464000

約数和(自身を除く): 208976060

約数列:

[1, 2, 4, 5, 10, 19, 20, 37, 38, 74, 76, 95, 148, 185, 190, 370, 380, 703, 740, 1406, 2812, 3515, 7030, 11699, 14060, 23398, 46796, 58495, 116990, 222281, 233980, 432863, 444562, 865726, 889124, 1111405, 1731452, 2164315, 2222810, 4328630, 4445620, 8224397, 8657260, 16448794, 32897588, 41121985, 82243970, 164487940]

約数ペア:

[(1, 164487940), (2, 82243970), (4, 41121985), (5, 32897588), (10, 16448794), (19, 8657260), (20, 8224397), (37, 4445620), (38, 4328630), (74, 2222810), (76, 2164315), (95, 1731452), (148, 1111405), (185, 889124), (190, 865726), (370, 444562), (380, 432863), (703, 233980), (740, 222281), (1406, 116990), (2812, 58495), (3515, 46796), (7030, 23398), (11699, 14060)]