19293680

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{263}}^1$

素因数の和:414

約数の個数: 80

約数和(自身を含む): 51853824

約数和(自身を除く): 32560144

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 131, 140, 262, 263, 280, 524, 526, 560, 655, 917, 1048, 1052, 1310, 1315, 1834, 1841, 2096, 2104, 2620, 2630, 3668, 3682, 4208, 4585, 5240, 5260, 7336, 7364, 9170, 9205, 10480, 10520, 14672, 14728, 18340, 18410, 21040, 29456, 34453, 36680, 36820, 68906, 73360, 73640, 137812, 147280, 172265, 241171, 275624, 344530, 482342, 551248, 689060, 964684, 1205855, 1378120, 1929368, 2411710, 2756240, 3858736, 4823420, 9646840, 19293680]

約数ペア:

[(1, 19293680), (2, 9646840), (4, 4823420), (5, 3858736), (7, 2756240), (8, 2411710), (10, 1929368), (14, 1378120), (16, 1205855), (20, 964684), (28, 689060), (35, 551248), (40, 482342), (56, 344530), (70, 275624), (80, 241171), (112, 172265), (131, 147280), (140, 137812), (262, 73640), (263, 73360), (280, 68906), (524, 36820), (526, 36680), (560, 34453), (655, 29456), (917, 21040), (1048, 18410), (1052, 18340), (1310, 14728), (1315, 14672), (1834, 10520), (1841, 10480), (2096, 9205), (2104, 9170), (2620, 7364), (2630, 7336), (3668, 5260), (3682, 5240), (4208, 4585)]