209962160

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{2939}}^1$

素因数の和:3018

約数の個数: 80

約数和(自身を含む): 524966400

約数和(自身を除く): 315004240

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 47, 76, 80, 94, 95, 152, 188, 190, 235, 304, 376, 380, 470, 752, 760, 893, 940, 1520, 1786, 1880, 2939, 3572, 3760, 4465, 5878, 7144, 8930, 11756, 14288, 14695, 17860, 23512, 29390, 35720, 47024, 55841, 58780, 71440, 111682, 117560, 138133, 223364, 235120, 276266, 279205, 446728, 552532, 558410, 690665, 893456, 1105064, 1116820, 1381330, 2210128, 2233640, 2624527, 2762660, 4467280, 5249054, 5525320, 10498108, 11050640, 13122635, 20996216, 26245270, 41992432, 52490540, 104981080, 209962160]

約数ペア:

[(1, 209962160), (2, 104981080), (4, 52490540), (5, 41992432), (8, 26245270), (10, 20996216), (16, 13122635), (19, 11050640), (20, 10498108), (38, 5525320), (40, 5249054), (47, 4467280), (76, 2762660), (80, 2624527), (94, 2233640), (95, 2210128), (152, 1381330), (188, 1116820), (190, 1105064), (235, 893456), (304, 690665), (376, 558410), (380, 552532), (470, 446728), (752, 279205), (760, 276266), (893, 235120), (940, 223364), (1520, 138133), (1786, 117560), (1880, 111682), (2939, 71440), (3572, 58780), (3760, 55841), (4465, 47024), (5878, 35720), (7144, 29390), (8930, 23512), (11756, 17860), (14288, 14695)]