221486300

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{397}}^1\times {\mathrm{797}}^1$

素因数の和:1215

約数の個数: 72

約数和(自身を含む): 551360544

約数和(自身を除く): 329874244

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 140, 175, 350, 397, 700, 794, 797, 1588, 1594, 1985, 2779, 3188, 3970, 3985, 5558, 5579, 7940, 7970, 9925, 11116, 11158, 13895, 15940, 19850, 19925, 22316, 27790, 27895, 39700, 39850, 55580, 55790, 69475, 79700, 111580, 138950, 139475, 277900, 278950, 316409, 557900, 632818, 1265636, 1582045, 2214863, 3164090, 4429726, 6328180, 7910225, 8859452, 11074315, 15820450, 22148630, 31640900, 44297260, 55371575, 110743150, 221486300]

約数ペア:

[(1, 221486300), (2, 110743150), (4, 55371575), (5, 44297260), (7, 31640900), (10, 22148630), (14, 15820450), (20, 11074315), (25, 8859452), (28, 7910225), (35, 6328180), (50, 4429726), (70, 3164090), (100, 2214863), (140, 1582045), (175, 1265636), (350, 632818), (397, 557900), (700, 316409), (794, 278950), (797, 277900), (1588, 139475), (1594, 138950), (1985, 111580), (2779, 79700), (3188, 69475), (3970, 55790), (3985, 55580), (5558, 39850), (5579, 39700), (7940, 27895), (7970, 27790), (9925, 22316), (11116, 19925), (11158, 19850), (13895, 15940)]