51507820

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^2\times {\mathrm{311}}^1$

素因数の和:360

約数の個数: 108

約数和(自身を含む): 136687824

約数和(自身を除く): 85180004

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 49, 52, 65, 70, 91, 98, 130, 140, 169, 182, 196, 245, 260, 311, 338, 364, 455, 490, 622, 637, 676, 845, 910, 980, 1183, 1244, 1274, 1555, 1690, 1820, 2177, 2366, 2548, 3110, 3185, 3380, 4043, 4354, 4732, 5915, 6220, 6370, 8086, 8281, 8708, 10885, 11830, 12740, 15239, 16172, 16562, 20215, 21770, 23660, 28301, 30478, 33124, 40430, 41405, 43540, 52559, 56602, 60956, 76195, 80860, 82810, 105118, 113204, 141505, 152390, 165620, 198107, 210236, 262795, 283010, 304780, 367913, 396214, 525590, 566020, 735826, 792428, 990535, 1051180, 1471652, 1839565, 1981070, 2575391, 3679130, 3962140, 5150782, 7358260, 10301564, 12876955, 25753910, 51507820]

約数ペア:

[(1, 51507820), (2, 25753910), (4, 12876955), (5, 10301564), (7, 7358260), (10, 5150782), (13, 3962140), (14, 3679130), (20, 2575391), (26, 1981070), (28, 1839565), (35, 1471652), (49, 1051180), (52, 990535), (65, 792428), (70, 735826), (91, 566020), (98, 525590), (130, 396214), (140, 367913), (169, 304780), (182, 283010), (196, 262795), (245, 210236), (260, 198107), (311, 165620), (338, 152390), (364, 141505), (455, 113204), (490, 105118), (622, 82810), (637, 80860), (676, 76195), (845, 60956), (910, 56602), (980, 52559), (1183, 43540), (1244, 41405), (1274, 40430), (1555, 33124), (1690, 30478), (1820, 28301), (2177, 23660), (2366, 21770), (2548, 20215), (3110, 16562), (3185, 16172), (3380, 15239), (4043, 12740), (4354, 11830), (4732, 10885), (5915, 8708), (6220, 8281), (6370, 8086)]