68491220

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{1487}}^1$

素因数の和:1557

約数の個数: 72

約数和(自身を含む): 170989056

約数和(自身を除く): 102497836

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 47, 49, 70, 94, 98, 140, 188, 196, 235, 245, 329, 470, 490, 658, 940, 980, 1316, 1487, 1645, 2303, 2974, 3290, 4606, 5948, 6580, 7435, 9212, 10409, 11515, 14870, 20818, 23030, 29740, 41636, 46060, 52045, 69889, 72863, 104090, 139778, 145726, 208180, 279556, 291452, 349445, 364315, 489223, 698890, 728630, 978446, 1397780, 1457260, 1956892, 2446115, 3424561, 4892230, 6849122, 9784460, 13698244, 17122805, 34245610, 68491220]

約数ペア:

[(1, 68491220), (2, 34245610), (4, 17122805), (5, 13698244), (7, 9784460), (10, 6849122), (14, 4892230), (20, 3424561), (28, 2446115), (35, 1956892), (47, 1457260), (49, 1397780), (70, 978446), (94, 728630), (98, 698890), (140, 489223), (188, 364315), (196, 349445), (235, 291452), (245, 279556), (329, 208180), (470, 145726), (490, 139778), (658, 104090), (940, 72863), (980, 69889), (1316, 52045), (1487, 46060), (1645, 41636), (2303, 29740), (2974, 23030), (3290, 20818), (4606, 14870), (5948, 11515), (6580, 10409), (7435, 9212)]