257524920

素因数分解:

$2^3\times 3^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{1303}}^1$

素因数の和:1387

約数の個数: 160

約数和(自身を含む): 880434720

約数和(自身を除く): 622909800

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 61, 72, 81, 90, 108, 120, 122, 135, 162, 180, 183, 216, 244, 270, 305, 324, 360, 366, 405, 488, 540, 549, 610, 648, 732, 810, 915, 1080, 1098, 1220, 1303, 1464, 1620, 1647, 1830, 2196, 2440, 2606, 2745, 3240, 3294, 3660, 3909, 4392, 4941, 5212, 5490, 6515, 6588, 7320, 7818, 8235, 9882, 10424, 10980, 11727, 13030, 13176, 15636, 16470, 19545, 19764, 21960, 23454, 24705, 26060, 31272, 32940, 35181, 39090, 39528, 46908, 49410, 52120, 58635, 65880, 70362, 78180, 79483, 93816, 98820, 105543, 117270, 140724, 156360, 158966, 175905, 197640, 211086, 234540, 238449, 281448, 317932, 351810, 397415, 422172, 469080, 476898, 527715, 635864, 703620, 715347, 794830, 844344, 953796, 1055430, 1192245, 1407240, 1430694, 1589660, 1907592, 2110860, 2146041, 2384490, 2861388, 3179320, 3576735, 4221720, 4292082, 4768980, 5722776, 6438123, 7153470, 8584164, 9537960, 10730205, 12876246, 14306940, 17168328, 21460410, 25752492, 28613880, 32190615, 42920820, 51504984, 64381230, 85841640, 128762460, 257524920]

約数ペア:

[(1, 257524920), (2, 128762460), (3, 85841640), (4, 64381230), (5, 51504984), (6, 42920820), (8, 32190615), (9, 28613880), (10, 25752492), (12, 21460410), (15, 17168328), (18, 14306940), (20, 12876246), (24, 10730205), (27, 9537960), (30, 8584164), (36, 7153470), (40, 6438123), (45, 5722776), (54, 4768980), (60, 4292082), (61, 4221720), (72, 3576735), (81, 3179320), (90, 2861388), (108, 2384490), (120, 2146041), (122, 2110860), (135, 1907592), (162, 1589660), (180, 1430694), (183, 1407240), (216, 1192245), (244, 1055430), (270, 953796), (305, 844344), (324, 794830), (360, 715347), (366, 703620), (405, 635864), (488, 527715), (540, 476898), (549, 469080), (610, 422172), (648, 397415), (732, 351810), (810, 317932), (915, 281448), (1080, 238449), (1098, 234540), (1220, 211086), (1303, 197640), (1464, 175905), (1620, 158966), (1647, 156360), (1830, 140724), (2196, 117270), (2440, 105543), (2606, 98820), (2745, 93816), (3240, 79483), (3294, 78180), (3660, 70362), (3909, 65880), (4392, 58635), (4941, 52120), (5212, 49410), (5490, 46908), (6515, 39528), (6588, 39090), (7320, 35181), (7818, 32940), (8235, 31272), (9882, 26060), (10424, 24705), (10980, 23454), (11727, 21960), (13030, 19764), (13176, 19545), (15636, 16470)]