261739410

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{157}}^1\times {\mathrm{911}}^1$

素因数の和:1139

約数の個数: 64

約数和(自身を含む): 643244544

約数和(自身を除く): 381505134

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 61, 122, 157, 183, 305, 314, 366, 471, 610, 785, 911, 915, 942, 1570, 1822, 1830, 2355, 2733, 4555, 4710, 5466, 9110, 9577, 13665, 19154, 27330, 28731, 47885, 55571, 57462, 95770, 111142, 143027, 143655, 166713, 277855, 286054, 287310, 333426, 429081, 555710, 715135, 833565, 858162, 1430270, 1667130, 2145405, 4290810, 8724647, 17449294, 26173941, 43623235, 52347882, 87246470, 130869705, 261739410]

約数ペア:

[(1, 261739410), (2, 130869705), (3, 87246470), (5, 52347882), (6, 43623235), (10, 26173941), (15, 17449294), (30, 8724647), (61, 4290810), (122, 2145405), (157, 1667130), (183, 1430270), (305, 858162), (314, 833565), (366, 715135), (471, 555710), (610, 429081), (785, 333426), (911, 287310), (915, 286054), (942, 277855), (1570, 166713), (1822, 143655), (1830, 143027), (2355, 111142), (2733, 95770), (4555, 57462), (4710, 55571), (5466, 47885), (9110, 28731), (9577, 27330), (13665, 19154)]