2451645

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{181}}^1$

素因数の和:242

約数の個数: 48

約数和(自身を含む): 4996992

約数和(自身を除く): 2545347

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 43, 45, 63, 105, 129, 181, 215, 301, 315, 387, 543, 645, 903, 905, 1267, 1505, 1629, 1935, 2709, 2715, 3801, 4515, 6335, 7783, 8145, 11403, 13545, 19005, 23349, 38915, 54481, 57015, 70047, 116745, 163443, 272405, 350235, 490329, 817215, 2451645]

約数ペア:

[(1, 2451645), (3, 817215), (5, 490329), (7, 350235), (9, 272405), (15, 163443), (21, 116745), (35, 70047), (43, 57015), (45, 54481), (63, 38915), (105, 23349), (129, 19005), (181, 13545), (215, 11403), (301, 8145), (315, 7783), (387, 6335), (543, 4515), (645, 3801), (903, 2715), (905, 2709), (1267, 1935), (1505, 1629)]