210004700

素因数分解:

$2^2\times 5^2\times {\mathrm{61}}^1\times {\mathrm{173}}^1\times {\mathrm{199}}^1$

素因数の和:447

約数の個数: 72

約数和(自身を含む): 468199200

約数和(自身を除く): 258194500

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 61, 100, 122, 173, 199, 244, 305, 346, 398, 610, 692, 796, 865, 995, 1220, 1525, 1730, 1990, 3050, 3460, 3980, 4325, 4975, 6100, 8650, 9950, 10553, 12139, 17300, 19900, 21106, 24278, 34427, 42212, 48556, 52765, 60695, 68854, 105530, 121390, 137708, 172135, 211060, 242780, 263825, 303475, 344270, 527650, 606950, 688540, 860675, 1055300, 1213900, 1721350, 2100047, 3442700, 4200094, 8400188, 10500235, 21000470, 42000940, 52501175, 105002350, 210004700]

約数ペア:

[(1, 210004700), (2, 105002350), (4, 52501175), (5, 42000940), (10, 21000470), (20, 10500235), (25, 8400188), (50, 4200094), (61, 3442700), (100, 2100047), (122, 1721350), (173, 1213900), (199, 1055300), (244, 860675), (305, 688540), (346, 606950), (398, 527650), (610, 344270), (692, 303475), (796, 263825), (865, 242780), (995, 211060), (1220, 172135), (1525, 137708), (1730, 121390), (1990, 105530), (3050, 68854), (3460, 60695), (3980, 52765), (4325, 48556), (4975, 42212), (6100, 34427), (8650, 24278), (9950, 21106), (10553, 19900), (12139, 17300)]