19876590

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{463}}^1$

素因数の和:535

約数の個数: 80

約数和(自身を含む): 54571968

約数和(自身を除く): 34695378

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 53, 54, 81, 90, 106, 135, 159, 162, 265, 270, 318, 405, 463, 477, 530, 795, 810, 926, 954, 1389, 1431, 1590, 2315, 2385, 2778, 2862, 4167, 4293, 4630, 4770, 6945, 7155, 8334, 8586, 12501, 13890, 14310, 20835, 21465, 24539, 25002, 37503, 41670, 42930, 49078, 62505, 73617, 75006, 122695, 125010, 147234, 187515, 220851, 245390, 368085, 375030, 441702, 662553, 736170, 1104255, 1325106, 1987659, 2208510, 3312765, 3975318, 6625530, 9938295, 19876590]

約数ペア:

[(1, 19876590), (2, 9938295), (3, 6625530), (5, 3975318), (6, 3312765), (9, 2208510), (10, 1987659), (15, 1325106), (18, 1104255), (27, 736170), (30, 662553), (45, 441702), (53, 375030), (54, 368085), (81, 245390), (90, 220851), (106, 187515), (135, 147234), (159, 125010), (162, 122695), (265, 75006), (270, 73617), (318, 62505), (405, 49078), (463, 42930), (477, 41670), (530, 37503), (795, 25002), (810, 24539), (926, 21465), (954, 20835), (1389, 14310), (1431, 13890), (1590, 12501), (2315, 8586), (2385, 8334), (2778, 7155), (2862, 6945), (4167, 4770), (4293, 4630)]