208180980

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{9719}}^1$

素因数の和:9758

約数の個数: 144

約数和(自身を含む): 764225280

約数和(自身を除く): 556044300

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 17, 18, 20, 21, 28, 30, 34, 35, 36, 42, 45, 51, 60, 63, 68, 70, 84, 85, 90, 102, 105, 119, 126, 140, 153, 170, 180, 204, 210, 238, 252, 255, 306, 315, 340, 357, 420, 476, 510, 595, 612, 630, 714, 765, 1020, 1071, 1190, 1260, 1428, 1530, 1785, 2142, 2380, 3060, 3570, 4284, 5355, 7140, 9719, 10710, 19438, 21420, 29157, 38876, 48595, 58314, 68033, 87471, 97190, 116628, 136066, 145785, 165223, 174942, 194380, 204099, 272132, 291570, 330446, 340165, 349884, 408198, 437355, 495669, 583140, 612297, 660892, 680330, 816396, 826115, 874710, 991338, 1020495, 1156561, 1224594, 1360660, 1487007, 1652230, 1749420, 1982676, 2040990, 2313122, 2449188, 2478345, 2974014, 3061485, 3304460, 3469683, 4081980, 4626244, 4956690, 5782805, 5948028, 6122970, 6939366, 7435035, 9913380, 10409049, 11565610, 12245940, 13878732, 14870070, 17348415, 20818098, 23131220, 29740140, 34696830, 41636196, 52045245, 69393660, 104090490, 208180980]

約数ペア:

[(1, 208180980), (2, 104090490), (3, 69393660), (4, 52045245), (5, 41636196), (6, 34696830), (7, 29740140), (9, 23131220), (10, 20818098), (12, 17348415), (14, 14870070), (15, 13878732), (17, 12245940), (18, 11565610), (20, 10409049), (21, 9913380), (28, 7435035), (30, 6939366), (34, 6122970), (35, 5948028), (36, 5782805), (42, 4956690), (45, 4626244), (51, 4081980), (60, 3469683), (63, 3304460), (68, 3061485), (70, 2974014), (84, 2478345), (85, 2449188), (90, 2313122), (102, 2040990), (105, 1982676), (119, 1749420), (126, 1652230), (140, 1487007), (153, 1360660), (170, 1224594), (180, 1156561), (204, 1020495), (210, 991338), (238, 874710), (252, 826115), (255, 816396), (306, 680330), (315, 660892), (340, 612297), (357, 583140), (420, 495669), (476, 437355), (510, 408198), (595, 349884), (612, 340165), (630, 330446), (714, 291570), (765, 272132), (1020, 204099), (1071, 194380), (1190, 174942), (1260, 165223), (1428, 145785), (1530, 136066), (1785, 116628), (2142, 97190), (2380, 87471), (3060, 68033), (3570, 58314), (4284, 48595), (5355, 38876), (7140, 29157), (9719, 21420), (10710, 19438)]