325817440

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{163}}^1$

素因数の和:253

約数の個数: 144

約数和(自身を含む): 861812784

約数和(自身を除く): 535995344

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, 163, 208, 248, 260, 310, 326, 403, 416, 496, 520, 620, 652, 806, 815, 961, 992, 1040, 1240, 1304, 1612, 1630, 1922, 2015, 2080, 2119, 2480, 2608, 3224, 3260, 3844, 4030, 4238, 4805, 4960, 5053, 5216, 6448, 6520, 7688, 8060, 8476, 9610, 10106, 10595, 12493, 12896, 13040, 15376, 16120, 16952, 19220, 20212, 21190, 24986, 25265, 26080, 30752, 32240, 33904, 38440, 40424, 42380, 49972, 50530, 62465, 64480, 65689, 67808, 76880, 80848, 84760, 99944, 101060, 124930, 131378, 153760, 156643, 161696, 169520, 199888, 202120, 249860, 262756, 313286, 328445, 339040, 399776, 404240, 499720, 525512, 626572, 656890, 783215, 808480, 999440, 1051024, 1253144, 1313780, 1566430, 1998880, 2036359, 2102048, 2506288, 2627560, 3132860, 4072718, 5012576, 5255120, 6265720, 8145436, 10181795, 10510240, 12531440, 16290872, 20363590, 25062880, 32581744, 40727180, 65163488, 81454360, 162908720, 325817440]

約数ペア:

[(1, 325817440), (2, 162908720), (4, 81454360), (5, 65163488), (8, 40727180), (10, 32581744), (13, 25062880), (16, 20363590), (20, 16290872), (26, 12531440), (31, 10510240), (32, 10181795), (40, 8145436), (52, 6265720), (62, 5255120), (65, 5012576), (80, 4072718), (104, 3132860), (124, 2627560), (130, 2506288), (155, 2102048), (160, 2036359), (163, 1998880), (208, 1566430), (248, 1313780), (260, 1253144), (310, 1051024), (326, 999440), (403, 808480), (416, 783215), (496, 656890), (520, 626572), (620, 525512), (652, 499720), (806, 404240), (815, 399776), (961, 339040), (992, 328445), (1040, 313286), (1240, 262756), (1304, 249860), (1612, 202120), (1630, 199888), (1922, 169520), (2015, 161696), (2080, 156643), (2119, 153760), (2480, 131378), (2608, 124930), (3224, 101060), (3260, 99944), (3844, 84760), (4030, 80848), (4238, 76880), (4805, 67808), (4960, 65689), (5053, 64480), (5216, 62465), (6448, 50530), (6520, 49972), (7688, 42380), (8060, 40424), (8476, 38440), (9610, 33904), (10106, 32240), (10595, 30752), (12493, 26080), (12896, 25265), (13040, 24986), (15376, 21190), (16120, 20212), (16952, 19220)]