12644120

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{131}}^1$

素因数の和:288

約数の個数: 64

約数和(自身を含む): 30412800

約数和(自身を除く): 17768680

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 127, 131, 152, 190, 254, 262, 380, 508, 524, 635, 655, 760, 1016, 1048, 1270, 1310, 2413, 2489, 2540, 2620, 4826, 4978, 5080, 5240, 9652, 9956, 12065, 12445, 16637, 19304, 19912, 24130, 24890, 33274, 48260, 49780, 66548, 83185, 96520, 99560, 133096, 166370, 316103, 332740, 632206, 665480, 1264412, 1580515, 2528824, 3161030, 6322060, 12644120]

約数ペア:

[(1, 12644120), (2, 6322060), (4, 3161030), (5, 2528824), (8, 1580515), (10, 1264412), (19, 665480), (20, 632206), (38, 332740), (40, 316103), (76, 166370), (95, 133096), (127, 99560), (131, 96520), (152, 83185), (190, 66548), (254, 49780), (262, 48260), (380, 33274), (508, 24890), (524, 24130), (635, 19912), (655, 19304), (760, 16637), (1016, 12445), (1048, 12065), (1270, 9956), (1310, 9652), (2413, 5240), (2489, 5080), (2540, 4978), (2620, 4826)]