25856480

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{401}}^1$

素因数の和:460

約数の個数: 96

約数和(自身を含む): 68076288

約数和(自身を除く): 42219808

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 32, 40, 52, 62, 65, 80, 104, 124, 130, 155, 160, 208, 248, 260, 310, 401, 403, 416, 496, 520, 620, 802, 806, 992, 1040, 1240, 1604, 1612, 2005, 2015, 2080, 2480, 3208, 3224, 4010, 4030, 4960, 5213, 6416, 6448, 8020, 8060, 10426, 12431, 12832, 12896, 16040, 16120, 20852, 24862, 26065, 32080, 32240, 41704, 49724, 52130, 62155, 64160, 64480, 83408, 99448, 104260, 124310, 161603, 166816, 198896, 208520, 248620, 323206, 397792, 417040, 497240, 646412, 808015, 834080, 994480, 1292824, 1616030, 1988960, 2585648, 3232060, 5171296, 6464120, 12928240, 25856480]

約数ペア:

[(1, 25856480), (2, 12928240), (4, 6464120), (5, 5171296), (8, 3232060), (10, 2585648), (13, 1988960), (16, 1616030), (20, 1292824), (26, 994480), (31, 834080), (32, 808015), (40, 646412), (52, 497240), (62, 417040), (65, 397792), (80, 323206), (104, 248620), (124, 208520), (130, 198896), (155, 166816), (160, 161603), (208, 124310), (248, 104260), (260, 99448), (310, 83408), (401, 64480), (403, 64160), (416, 62155), (496, 52130), (520, 49724), (620, 41704), (802, 32240), (806, 32080), (992, 26065), (1040, 24862), (1240, 20852), (1604, 16120), (1612, 16040), (2005, 12896), (2015, 12832), (2080, 12431), (2480, 10426), (3208, 8060), (3224, 8020), (4010, 6448), (4030, 6416), (4960, 5213)]