28259140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{15527}}^1$

素因数の和:15556

約数の個数: 48

約数和(自身を含む): 73043712

約数和(自身を除く): 44784572

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 15527, 31054, 62108, 77635, 108689, 155270, 201851, 217378, 310540, 403702, 434756, 543445, 807404, 1009255, 1086890, 1412957, 2018510, 2173780, 2825914, 4037020, 5651828, 7064785, 14129570, 28259140]

約数ペア:

[(1, 28259140), (2, 14129570), (4, 7064785), (5, 5651828), (7, 4037020), (10, 2825914), (13, 2173780), (14, 2018510), (20, 1412957), (26, 1086890), (28, 1009255), (35, 807404), (52, 543445), (65, 434756), (70, 403702), (91, 310540), (130, 217378), (140, 201851), (182, 155270), (260, 108689), (364, 77635), (455, 62108), (910, 31054), (1820, 15527)]