871170020

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{433}}^1\times {\mathrm{2053}}^1$

素因数の和:2509

約数の個数: 72

約数和(自身を含む): 2134097784

約数和(自身を除く): 1262927764

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 433, 490, 866, 980, 1732, 2053, 2165, 3031, 4106, 4330, 6062, 8212, 8660, 10265, 12124, 14371, 15155, 20530, 21217, 28742, 30310, 41060, 42434, 57484, 60620, 71855, 84868, 100597, 106085, 143710, 201194, 212170, 287420, 402388, 424340, 502985, 888949, 1005970, 1777898, 2011940, 3555796, 4444745, 6222643, 8889490, 12445286, 17778980, 24890572, 31113215, 43558501, 62226430, 87117002, 124452860, 174234004, 217792505, 435585010, 871170020]

約数ペア:

[(1, 871170020), (2, 435585010), (4, 217792505), (5, 174234004), (7, 124452860), (10, 87117002), (14, 62226430), (20, 43558501), (28, 31113215), (35, 24890572), (49, 17778980), (70, 12445286), (98, 8889490), (140, 6222643), (196, 4444745), (245, 3555796), (433, 2011940), (490, 1777898), (866, 1005970), (980, 888949), (1732, 502985), (2053, 424340), (2165, 402388), (3031, 287420), (4106, 212170), (4330, 201194), (6062, 143710), (8212, 106085), (8660, 100597), (10265, 84868), (12124, 71855), (14371, 60620), (15155, 57484), (20530, 42434), (21217, 41060), (28742, 30310)]