201530980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{113}}^1\times {\mathrm{12739}}^1$

素因数の和:12868

約数の個数: 48

約数和(自身を含む): 487992960

約数和(自身を除く): 286461980

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 113, 140, 226, 452, 565, 791, 1130, 1582, 2260, 3164, 3955, 7910, 12739, 15820, 25478, 50956, 63695, 89173, 127390, 178346, 254780, 356692, 445865, 891730, 1439507, 1783460, 2879014, 5758028, 7197535, 10076549, 14395070, 20153098, 28790140, 40306196, 50382745, 100765490, 201530980]

約数ペア:

[(1, 201530980), (2, 100765490), (4, 50382745), (5, 40306196), (7, 28790140), (10, 20153098), (14, 14395070), (20, 10076549), (28, 7197535), (35, 5758028), (70, 2879014), (113, 1783460), (140, 1439507), (226, 891730), (452, 445865), (565, 356692), (791, 254780), (1130, 178346), (1582, 127390), (2260, 89173), (3164, 63695), (3955, 50956), (7910, 25478), (12739, 15820)]