22400420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{61}}^2$

素因数の和:181

約数の個数: 72

約数和(自身を含む): 55927872

約数和(自身を除く): 33527452

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 43, 61, 70, 86, 122, 140, 172, 215, 244, 301, 305, 427, 430, 602, 610, 854, 860, 1204, 1220, 1505, 1708, 2135, 2623, 3010, 3721, 4270, 5246, 6020, 7442, 8540, 10492, 13115, 14884, 18361, 18605, 26047, 26230, 36722, 37210, 52094, 52460, 73444, 74420, 91805, 104188, 130235, 160003, 183610, 260470, 320006, 367220, 520940, 640012, 800015, 1120021, 1600030, 2240042, 3200060, 4480084, 5600105, 11200210, 22400420]

約数ペア:

[(1, 22400420), (2, 11200210), (4, 5600105), (5, 4480084), (7, 3200060), (10, 2240042), (14, 1600030), (20, 1120021), (28, 800015), (35, 640012), (43, 520940), (61, 367220), (70, 320006), (86, 260470), (122, 183610), (140, 160003), (172, 130235), (215, 104188), (244, 91805), (301, 74420), (305, 73444), (427, 52460), (430, 52094), (602, 37210), (610, 36722), (854, 26230), (860, 26047), (1204, 18605), (1220, 18361), (1505, 14884), (1708, 13115), (2135, 10492), (2623, 8540), (3010, 7442), (3721, 6020), (4270, 5246)]