26178555

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{149}}^1$

素因数の和:240

約数の個数: 64

約数和(自身を含む): 48988800

約数和(自身を除く): 22810245

約数列:

[1, 3, 5, 13, 15, 17, 39, 51, 53, 65, 85, 149, 159, 195, 221, 255, 265, 447, 663, 689, 745, 795, 901, 1105, 1937, 2067, 2235, 2533, 2703, 3315, 3445, 4505, 5811, 7599, 7897, 9685, 10335, 11713, 12665, 13515, 23691, 29055, 32929, 35139, 37995, 39485, 58565, 98787, 102661, 118455, 134249, 164645, 175695, 307983, 402747, 493935, 513305, 671245, 1539915, 1745237, 2013735, 5235711, 8726185, 26178555]

約数ペア:

[(1, 26178555), (3, 8726185), (5, 5235711), (13, 2013735), (15, 1745237), (17, 1539915), (39, 671245), (51, 513305), (53, 493935), (65, 402747), (85, 307983), (149, 175695), (159, 164645), (195, 134249), (221, 118455), (255, 102661), (265, 98787), (447, 58565), (663, 39485), (689, 37995), (745, 35139), (795, 32929), (901, 29055), (1105, 23691), (1937, 13515), (2067, 12665), (2235, 11713), (2533, 10335), (2703, 9685), (3315, 7897), (3445, 7599), (4505, 5811)]