51991940

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1$

素因数の和:107

約数の個数: 192

約数和(自身を含む): 152409600

約数和(自身を除く): 100417660

約数列:

[1, 2, 4, 5, 7, 10, 11, 13, 14, 20, 22, 26, 28, 35, 44, 49, 52, 53, 55, 65, 70, 77, 91, 98, 106, 110, 130, 140, 143, 154, 182, 196, 212, 220, 245, 260, 265, 286, 308, 343, 364, 371, 385, 455, 490, 530, 539, 572, 583, 637, 686, 689, 715, 742, 770, 910, 980, 1001, 1060, 1078, 1166, 1274, 1372, 1378, 1430, 1484, 1540, 1715, 1820, 1855, 2002, 2156, 2332, 2548, 2597, 2695, 2756, 2860, 2915, 3185, 3430, 3445, 3710, 3773, 4004, 4081, 4459, 4823, 5005, 5194, 5390, 5830, 6370, 6860, 6890, 7007, 7420, 7546, 7579, 8162, 8918, 9646, 10010, 10388, 10780, 11660, 12740, 12985, 13780, 14014, 15092, 15158, 16324, 17836, 18179, 18865, 19292, 20020, 20405, 22295, 24115, 25970, 28028, 28567, 30316, 33761, 35035, 36358, 37730, 37895, 40810, 44590, 48230, 49049, 51940, 53053, 57134, 67522, 70070, 72716, 75460, 75790, 81620, 89180, 90895, 96460, 98098, 106106, 114268, 135044, 140140, 142835, 151580, 168805, 181790, 196196, 199969, 212212, 236327, 245245, 265265, 285670, 337610, 363580, 371371, 399938, 472654, 490490, 530530, 571340, 675220, 742742, 799876, 945308, 980980, 999845, 1061060, 1181635, 1485484, 1856855, 1999690, 2363270, 2599597, 3713710, 3999380, 4726540, 5199194, 7427420, 10398388, 12997985, 25995970, 51991940]

約数ペア:

[(1, 51991940), (2, 25995970), (4, 12997985), (5, 10398388), (7, 7427420), (10, 5199194), (11, 4726540), (13, 3999380), (14, 3713710), (20, 2599597), (22, 2363270), (26, 1999690), (28, 1856855), (35, 1485484), (44, 1181635), (49, 1061060), (52, 999845), (53, 980980), (55, 945308), (65, 799876), (70, 742742), (77, 675220), (91, 571340), (98, 530530), (106, 490490), (110, 472654), (130, 399938), (140, 371371), (143, 363580), (154, 337610), (182, 285670), (196, 265265), (212, 245245), (220, 236327), (245, 212212), (260, 199969), (265, 196196), (286, 181790), (308, 168805), (343, 151580), (364, 142835), (371, 140140), (385, 135044), (455, 114268), (490, 106106), (530, 98098), (539, 96460), (572, 90895), (583, 89180), (637, 81620), (686, 75790), (689, 75460), (715, 72716), (742, 70070), (770, 67522), (910, 57134), (980, 53053), (1001, 51940), (1060, 49049), (1078, 48230), (1166, 44590), (1274, 40810), (1372, 37895), (1378, 37730), (1430, 36358), (1484, 35035), (1540, 33761), (1715, 30316), (1820, 28567), (1855, 28028), (2002, 25970), (2156, 24115), (2332, 22295), (2548, 20405), (2597, 20020), (2695, 19292), (2756, 18865), (2860, 18179), (2915, 17836), (3185, 16324), (3430, 15158), (3445, 15092), (3710, 14014), (3773, 13780), (4004, 12985), (4081, 12740), (4459, 11660), (4823, 10780), (5005, 10388), (5194, 10010), (5390, 9646), (5830, 8918), (6370, 8162), (6860, 7579), (6890, 7546), (7007, 7420)]