27997620

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{89}}^1\times {\mathrm{107}}^1$

素因数の和:222

約数の個数: 144

約数和(自身を含む): 93078720

約数和(自身を除く): 65081100

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 89, 98, 105, 107, 140, 147, 178, 196, 210, 214, 245, 267, 294, 321, 356, 420, 428, 445, 490, 534, 535, 588, 623, 642, 735, 749, 890, 980, 1068, 1070, 1246, 1284, 1335, 1470, 1498, 1605, 1780, 1869, 2140, 2247, 2492, 2670, 2940, 2996, 3115, 3210, 3738, 3745, 4361, 4494, 5243, 5340, 6230, 6420, 7476, 7490, 8722, 8988, 9345, 9523, 10486, 11235, 12460, 13083, 14980, 15729, 17444, 18690, 19046, 20972, 21805, 22470, 26166, 26215, 28569, 31458, 37380, 38092, 43610, 44940, 47615, 52332, 52430, 57138, 62916, 65415, 66661, 78645, 87220, 95230, 104860, 114276, 130830, 133322, 142845, 157290, 190460, 199983, 261660, 266644, 285690, 314580, 333305, 399966, 466627, 571380, 666610, 799932, 933254, 999915, 1333220, 1399881, 1866508, 1999830, 2333135, 2799762, 3999660, 4666270, 5599524, 6999405, 9332540, 13998810, 27997620]

約数ペア:

[(1, 27997620), (2, 13998810), (3, 9332540), (4, 6999405), (5, 5599524), (6, 4666270), (7, 3999660), (10, 2799762), (12, 2333135), (14, 1999830), (15, 1866508), (20, 1399881), (21, 1333220), (28, 999915), (30, 933254), (35, 799932), (42, 666610), (49, 571380), (60, 466627), (70, 399966), (84, 333305), (89, 314580), (98, 285690), (105, 266644), (107, 261660), (140, 199983), (147, 190460), (178, 157290), (196, 142845), (210, 133322), (214, 130830), (245, 114276), (267, 104860), (294, 95230), (321, 87220), (356, 78645), (420, 66661), (428, 65415), (445, 62916), (490, 57138), (534, 52430), (535, 52332), (588, 47615), (623, 44940), (642, 43610), (735, 38092), (749, 37380), (890, 31458), (980, 28569), (1068, 26215), (1070, 26166), (1246, 22470), (1284, 21805), (1335, 20972), (1470, 19046), (1498, 18690), (1605, 17444), (1780, 15729), (1869, 14980), (2140, 13083), (2247, 12460), (2492, 11235), (2670, 10486), (2940, 9523), (2996, 9345), (3115, 8988), (3210, 8722), (3738, 7490), (3745, 7476), (4361, 6420), (4494, 6230), (5243, 5340)]