17397940

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{433}}^1$

素因数の和:497

約数の個数: 72

約数和(自身を含む): 43637832

約数和(自身を除く): 26239892

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 41, 49, 70, 82, 98, 140, 164, 196, 205, 245, 287, 410, 433, 490, 574, 820, 866, 980, 1148, 1435, 1732, 2009, 2165, 2870, 3031, 4018, 4330, 5740, 6062, 8036, 8660, 10045, 12124, 15155, 17753, 20090, 21217, 30310, 35506, 40180, 42434, 60620, 71012, 84868, 88765, 106085, 124271, 177530, 212170, 248542, 355060, 424340, 497084, 621355, 869897, 1242710, 1739794, 2485420, 3479588, 4349485, 8698970, 17397940]

約数ペア:

[(1, 17397940), (2, 8698970), (4, 4349485), (5, 3479588), (7, 2485420), (10, 1739794), (14, 1242710), (20, 869897), (28, 621355), (35, 497084), (41, 424340), (49, 355060), (70, 248542), (82, 212170), (98, 177530), (140, 124271), (164, 106085), (196, 88765), (205, 84868), (245, 71012), (287, 60620), (410, 42434), (433, 40180), (490, 35506), (574, 30310), (820, 21217), (866, 20090), (980, 17753), (1148, 15155), (1435, 12124), (1732, 10045), (2009, 8660), (2165, 8036), (2870, 6062), (3031, 5740), (4018, 4330)]