139948900

素因数分解:

$2^2\times 5^2\times 7^2\times {\mathrm{13}}^4$

素因数の和:80

約数の個数: 135

約数和(自身を含む): 382709229

約数和(自身を除く): 242760329

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 25, 26, 28, 35, 49, 50, 52, 65, 70, 91, 98, 100, 130, 140, 169, 175, 182, 196, 245, 260, 325, 338, 350, 364, 455, 490, 637, 650, 676, 700, 845, 910, 980, 1183, 1225, 1274, 1300, 1690, 1820, 2197, 2275, 2366, 2450, 2548, 3185, 3380, 4225, 4394, 4550, 4732, 4900, 5915, 6370, 8281, 8450, 8788, 9100, 10985, 11830, 12740, 15379, 15925, 16562, 16900, 21970, 23660, 28561, 29575, 30758, 31850, 33124, 41405, 43940, 54925, 57122, 59150, 61516, 63700, 76895, 82810, 107653, 109850, 114244, 118300, 142805, 153790, 165620, 199927, 207025, 215306, 219700, 285610, 307580, 384475, 399854, 414050, 430612, 538265, 571220, 714025, 768950, 799708, 828100, 999635, 1076530, 1399489, 1428050, 1537900, 1999270, 2153060, 2691325, 2798978, 2856100, 3998540, 4998175, 5382650, 5597956, 6997445, 9996350, 10765300, 13994890, 19992700, 27989780, 34987225, 69974450, 139948900]

約数ペア:

[(1, 139948900), (2, 69974450), (4, 34987225), (5, 27989780), (7, 19992700), (10, 13994890), (13, 10765300), (14, 9996350), (20, 6997445), (25, 5597956), (26, 5382650), (28, 4998175), (35, 3998540), (49, 2856100), (50, 2798978), (52, 2691325), (65, 2153060), (70, 1999270), (91, 1537900), (98, 1428050), (100, 1399489), (130, 1076530), (140, 999635), (169, 828100), (175, 799708), (182, 768950), (196, 714025), (245, 571220), (260, 538265), (325, 430612), (338, 414050), (350, 399854), (364, 384475), (455, 307580), (490, 285610), (637, 219700), (650, 215306), (676, 207025), (700, 199927), (845, 165620), (910, 153790), (980, 142805), (1183, 118300), (1225, 114244), (1274, 109850), (1300, 107653), (1690, 82810), (1820, 76895), (2197, 63700), (2275, 61516), (2366, 59150), (2450, 57122), (2548, 54925), (3185, 43940), (3380, 41405), (4225, 33124), (4394, 31850), (4550, 30758), (4732, 29575), (4900, 28561), (5915, 23660), (6370, 21970), (8281, 16900), (8450, 16562), (8788, 15925), (9100, 15379), (10985, 12740)]