1800045

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{181}}^1$

素因数の和:222

約数の個数: 48

約数和(自身を含む): 3577392

約数和(自身を除く): 1777347

約数列:

[1, 3, 5, 9, 13, 15, 17, 39, 45, 51, 65, 85, 117, 153, 181, 195, 221, 255, 543, 585, 663, 765, 905, 1105, 1629, 1989, 2353, 2715, 3077, 3315, 7059, 8145, 9231, 9945, 11765, 15385, 21177, 27693, 35295, 40001, 46155, 105885, 120003, 138465, 200005, 360009, 600015, 1800045]

約数ペア:

[(1, 1800045), (3, 600015), (5, 360009), (9, 200005), (13, 138465), (15, 120003), (17, 105885), (39, 46155), (45, 40001), (51, 35295), (65, 27693), (85, 21177), (117, 15385), (153, 11765), (181, 9945), (195, 9231), (221, 8145), (255, 7059), (543, 3315), (585, 3077), (663, 2715), (765, 2353), (905, 1989), (1105, 1629)]