6721820

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{19}}^3$

素因数の和:80

約数の個数: 72

約数和(自身を含む): 17332560

約数和(自身を除く): 10610740

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 49, 70, 76, 95, 98, 133, 140, 190, 196, 245, 266, 361, 380, 490, 532, 665, 722, 931, 980, 1330, 1444, 1805, 1862, 2527, 2660, 3610, 3724, 4655, 5054, 6859, 7220, 9310, 10108, 12635, 13718, 17689, 18620, 25270, 27436, 34295, 35378, 48013, 50540, 68590, 70756, 88445, 96026, 137180, 176890, 192052, 240065, 336091, 353780, 480130, 672182, 960260, 1344364, 1680455, 3360910, 6721820]

約数ペア:

[(1, 6721820), (2, 3360910), (4, 1680455), (5, 1344364), (7, 960260), (10, 672182), (14, 480130), (19, 353780), (20, 336091), (28, 240065), (35, 192052), (38, 176890), (49, 137180), (70, 96026), (76, 88445), (95, 70756), (98, 68590), (133, 50540), (140, 48013), (190, 35378), (196, 34295), (245, 27436), (266, 25270), (361, 18620), (380, 17689), (490, 13718), (532, 12635), (665, 10108), (722, 9310), (931, 7220), (980, 6859), (1330, 5054), (1444, 4655), (1805, 3724), (1862, 3610), (2527, 2660)]