81975960

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{163}}^1$

素因数の和:318

約数の個数: 192

約数和(自身を含む): 294727680

約数和(自身を除く): 212751720

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 18, 20, 22, 24, 30, 33, 36, 40, 44, 45, 55, 60, 66, 72, 88, 90, 99, 110, 120, 127, 132, 163, 165, 180, 198, 220, 254, 264, 326, 330, 360, 381, 396, 440, 489, 495, 508, 635, 652, 660, 762, 792, 815, 978, 990, 1016, 1143, 1270, 1304, 1320, 1397, 1467, 1524, 1630, 1793, 1905, 1956, 1980, 2286, 2445, 2540, 2794, 2934, 3048, 3260, 3586, 3810, 3912, 3960, 4191, 4572, 4890, 5080, 5379, 5588, 5715, 5868, 6520, 6985, 7172, 7335, 7620, 8382, 8965, 9144, 9780, 10758, 11176, 11430, 11736, 12573, 13970, 14344, 14670, 15240, 16137, 16764, 17930, 19560, 20701, 20955, 21516, 22860, 25146, 26895, 27940, 29340, 32274, 33528, 35860, 41402, 41910, 43032, 45720, 50292, 53790, 55880, 58680, 62103, 62865, 64548, 71720, 80685, 82804, 83820, 100584, 103505, 107580, 124206, 125730, 129096, 161370, 165608, 167640, 186309, 207010, 215160, 227711, 248412, 251460, 310515, 322740, 372618, 414020, 455422, 496824, 502920, 621030, 645480, 683133, 745236, 828040, 910844, 931545, 1138555, 1242060, 1366266, 1490472, 1821688, 1863090, 2049399, 2277110, 2484120, 2732532, 3415665, 3726180, 4098798, 4554220, 5465064, 6831330, 7452360, 8197596, 9108440, 10246995, 13662660, 16395192, 20493990, 27325320, 40987980, 81975960]

約数ペア:

[(1, 81975960), (2, 40987980), (3, 27325320), (4, 20493990), (5, 16395192), (6, 13662660), (8, 10246995), (9, 9108440), (10, 8197596), (11, 7452360), (12, 6831330), (15, 5465064), (18, 4554220), (20, 4098798), (22, 3726180), (24, 3415665), (30, 2732532), (33, 2484120), (36, 2277110), (40, 2049399), (44, 1863090), (45, 1821688), (55, 1490472), (60, 1366266), (66, 1242060), (72, 1138555), (88, 931545), (90, 910844), (99, 828040), (110, 745236), (120, 683133), (127, 645480), (132, 621030), (163, 502920), (165, 496824), (180, 455422), (198, 414020), (220, 372618), (254, 322740), (264, 310515), (326, 251460), (330, 248412), (360, 227711), (381, 215160), (396, 207010), (440, 186309), (489, 167640), (495, 165608), (508, 161370), (635, 129096), (652, 125730), (660, 124206), (762, 107580), (792, 103505), (815, 100584), (978, 83820), (990, 82804), (1016, 80685), (1143, 71720), (1270, 64548), (1304, 62865), (1320, 62103), (1397, 58680), (1467, 55880), (1524, 53790), (1630, 50292), (1793, 45720), (1905, 43032), (1956, 41910), (1980, 41402), (2286, 35860), (2445, 33528), (2540, 32274), (2794, 29340), (2934, 27940), (3048, 26895), (3260, 25146), (3586, 22860), (3810, 21516), (3912, 20955), (3960, 20701), (4191, 19560), (4572, 17930), (4890, 16764), (5080, 16137), (5379, 15240), (5588, 14670), (5715, 14344), (5868, 13970), (6520, 12573), (6985, 11736), (7172, 11430), (7335, 11176), (7620, 10758), (8382, 9780), (8965, 9144)]