20325370

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{541}}^1$

素因数の和:595

約数の個数: 48

約数和(自身を含む): 41931288

約数和(自身を除く): 21605918

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 65, 85, 130, 170, 221, 289, 442, 541, 578, 1082, 1105, 1445, 2210, 2705, 2890, 3757, 5410, 7033, 7514, 9197, 14066, 18394, 18785, 35165, 37570, 45985, 70330, 91970, 119561, 156349, 239122, 312698, 597805, 781745, 1195610, 1563490, 2032537, 4065074, 10162685, 20325370]

約数ペア:

[(1, 20325370), (2, 10162685), (5, 4065074), (10, 2032537), (13, 1563490), (17, 1195610), (26, 781745), (34, 597805), (65, 312698), (85, 239122), (130, 156349), (170, 119561), (221, 91970), (289, 70330), (442, 45985), (541, 37570), (578, 35165), (1082, 18785), (1105, 18394), (1445, 14066), (2210, 9197), (2705, 7514), (2890, 7033), (3757, 5410)]