20582940

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{7001}}^1$

素因数の和:7027

約数の個数: 72

約数和(自身を含む): 67051152

約数和(自身を除く): 46468212

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 7001, 14002, 21003, 28004, 35005, 42006, 49007, 70010, 84012, 98014, 105015, 140020, 147021, 196028, 210030, 245035, 294042, 343049, 420060, 490070, 588084, 686098, 735105, 980140, 1029147, 1372196, 1470210, 1715245, 2058294, 2940420, 3430490, 4116588, 5145735, 6860980, 10291470, 20582940]

約数ペア:

[(1, 20582940), (2, 10291470), (3, 6860980), (4, 5145735), (5, 4116588), (6, 3430490), (7, 2940420), (10, 2058294), (12, 1715245), (14, 1470210), (15, 1372196), (20, 1029147), (21, 980140), (28, 735105), (30, 686098), (35, 588084), (42, 490070), (49, 420060), (60, 343049), (70, 294042), (84, 245035), (98, 210030), (105, 196028), (140, 147021), (147, 140020), (196, 105015), (210, 98014), (245, 84012), (294, 70010), (420, 49007), (490, 42006), (588, 35005), (735, 28004), (980, 21003), (1470, 14002), (2940, 7001)]