87299380

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{229}}^1\times {\mathrm{389}}^1$

素因数の和:641

約数の個数: 72

約数和(自身を含む): 214741800

約数和(自身を除く): 127442420

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 229, 245, 389, 458, 490, 778, 916, 980, 1145, 1556, 1603, 1945, 2290, 2723, 3206, 3890, 4580, 5446, 6412, 7780, 8015, 10892, 11221, 13615, 16030, 19061, 22442, 27230, 32060, 38122, 44884, 54460, 56105, 76244, 89081, 95305, 112210, 178162, 190610, 224420, 356324, 381220, 445405, 623567, 890810, 1247134, 1781620, 2494268, 3117835, 4364969, 6235670, 8729938, 12471340, 17459876, 21824845, 43649690, 87299380]

約数ペア:

[(1, 87299380), (2, 43649690), (4, 21824845), (5, 17459876), (7, 12471340), (10, 8729938), (14, 6235670), (20, 4364969), (28, 3117835), (35, 2494268), (49, 1781620), (70, 1247134), (98, 890810), (140, 623567), (196, 445405), (229, 381220), (245, 356324), (389, 224420), (458, 190610), (490, 178162), (778, 112210), (916, 95305), (980, 89081), (1145, 76244), (1556, 56105), (1603, 54460), (1945, 44884), (2290, 38122), (2723, 32060), (3206, 27230), (3890, 22442), (4580, 19061), (5446, 16030), (6412, 13615), (7780, 11221), (8015, 10892)]