19243900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{131}}^1$

素因数の和:271

約数の個数: 72

約数和(自身を含む): 45715824

約数和(自身を除く): 26471924

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 113, 130, 131, 226, 260, 262, 325, 452, 524, 565, 650, 655, 1130, 1300, 1310, 1469, 1703, 2260, 2620, 2825, 2938, 3275, 3406, 5650, 5876, 6550, 6812, 7345, 8515, 11300, 13100, 14690, 14803, 17030, 29380, 29606, 34060, 36725, 42575, 59212, 73450, 74015, 85150, 146900, 148030, 170300, 192439, 296060, 370075, 384878, 740150, 769756, 962195, 1480300, 1924390, 3848780, 4810975, 9621950, 19243900]

約数ペア:

[(1, 19243900), (2, 9621950), (4, 4810975), (5, 3848780), (10, 1924390), (13, 1480300), (20, 962195), (25, 769756), (26, 740150), (50, 384878), (52, 370075), (65, 296060), (100, 192439), (113, 170300), (130, 148030), (131, 146900), (226, 85150), (260, 74015), (262, 73450), (325, 59212), (452, 42575), (524, 36725), (565, 34060), (650, 29606), (655, 29380), (1130, 17030), (1300, 14803), (1310, 14690), (1469, 13100), (1703, 11300), (2260, 8515), (2620, 7345), (2825, 6812), (2938, 6550), (3275, 5876), (3406, 5650)]