254090720

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{809}}^1$

素因数の和:988

約数の個数: 96

約数和(自身を含む): 651551040

約数和(自身を除く): 397460320

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 151, 160, 208, 260, 302, 416, 520, 604, 755, 809, 1040, 1208, 1510, 1618, 1963, 2080, 2416, 3020, 3236, 3926, 4045, 4832, 6040, 6472, 7852, 8090, 9815, 10517, 12080, 12944, 15704, 16180, 19630, 21034, 24160, 25888, 31408, 32360, 39260, 42068, 52585, 62816, 64720, 78520, 84136, 105170, 122159, 129440, 157040, 168272, 210340, 244318, 314080, 336544, 420680, 488636, 610795, 841360, 977272, 1221590, 1588067, 1682720, 1954544, 2443180, 3176134, 3909088, 4886360, 6352268, 7940335, 9772720, 12704536, 15880670, 19545440, 25409072, 31761340, 50818144, 63522680, 127045360, 254090720]

約数ペア:

[(1, 254090720), (2, 127045360), (4, 63522680), (5, 50818144), (8, 31761340), (10, 25409072), (13, 19545440), (16, 15880670), (20, 12704536), (26, 9772720), (32, 7940335), (40, 6352268), (52, 4886360), (65, 3909088), (80, 3176134), (104, 2443180), (130, 1954544), (151, 1682720), (160, 1588067), (208, 1221590), (260, 977272), (302, 841360), (416, 610795), (520, 488636), (604, 420680), (755, 336544), (809, 314080), (1040, 244318), (1208, 210340), (1510, 168272), (1618, 157040), (1963, 129440), (2080, 122159), (2416, 105170), (3020, 84136), (3236, 78520), (3926, 64720), (4045, 62816), (4832, 52585), (6040, 42068), (6472, 39260), (7852, 32360), (8090, 31408), (9815, 25888), (10517, 24160), (12080, 21034), (12944, 19630), (15704, 16180)]