51520140

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1319}}^1$

素因数の和:1372

約数の個数: 144

約数和(自身を含む): 184504320

約数和(自身を除く): 132984180

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 31, 35, 36, 42, 45, 60, 62, 63, 70, 84, 90, 93, 105, 124, 126, 140, 155, 180, 186, 210, 217, 252, 279, 310, 315, 372, 420, 434, 465, 558, 620, 630, 651, 868, 930, 1085, 1116, 1260, 1302, 1319, 1395, 1860, 1953, 2170, 2604, 2638, 2790, 3255, 3906, 3957, 4340, 5276, 5580, 6510, 6595, 7812, 7914, 9233, 9765, 11871, 13020, 13190, 15828, 18466, 19530, 19785, 23742, 26380, 27699, 36932, 39060, 39570, 40889, 46165, 47484, 55398, 59355, 79140, 81778, 83097, 92330, 110796, 118710, 122667, 138495, 163556, 166194, 184660, 204445, 237420, 245334, 276990, 286223, 332388, 368001, 408890, 415485, 490668, 553980, 572446, 613335, 736002, 817780, 830970, 858669, 1144892, 1226670, 1431115, 1472004, 1661940, 1717338, 1840005, 2453340, 2576007, 2862230, 3434676, 3680010, 4293345, 5152014, 5724460, 7360020, 8586690, 10304028, 12880035, 17173380, 25760070, 51520140]

約数ペア:

[(1, 51520140), (2, 25760070), (3, 17173380), (4, 12880035), (5, 10304028), (6, 8586690), (7, 7360020), (9, 5724460), (10, 5152014), (12, 4293345), (14, 3680010), (15, 3434676), (18, 2862230), (20, 2576007), (21, 2453340), (28, 1840005), (30, 1717338), (31, 1661940), (35, 1472004), (36, 1431115), (42, 1226670), (45, 1144892), (60, 858669), (62, 830970), (63, 817780), (70, 736002), (84, 613335), (90, 572446), (93, 553980), (105, 490668), (124, 415485), (126, 408890), (140, 368001), (155, 332388), (180, 286223), (186, 276990), (210, 245334), (217, 237420), (252, 204445), (279, 184660), (310, 166194), (315, 163556), (372, 138495), (420, 122667), (434, 118710), (465, 110796), (558, 92330), (620, 83097), (630, 81778), (651, 79140), (868, 59355), (930, 55398), (1085, 47484), (1116, 46165), (1260, 40889), (1302, 39570), (1319, 39060), (1395, 36932), (1860, 27699), (1953, 26380), (2170, 23742), (2604, 19785), (2638, 19530), (2790, 18466), (3255, 15828), (3906, 13190), (3957, 13020), (4340, 11871), (5276, 9765), (5580, 9233), (6510, 7914), (6595, 7812)]