18241425

素因数分解:

$3^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{251}}^1$

素因数の和:303

約数の個数: 72

約数和(自身を含む): 36560160

約数和(自身を除く): 18318735

約数列:

[1, 3, 5, 9, 15, 17, 19, 25, 45, 51, 57, 75, 85, 95, 153, 171, 225, 251, 255, 285, 323, 425, 475, 753, 765, 855, 969, 1255, 1275, 1425, 1615, 2259, 2907, 3765, 3825, 4267, 4275, 4769, 4845, 6275, 8075, 11295, 12801, 14307, 14535, 18825, 21335, 23845, 24225, 38403, 42921, 56475, 64005, 71535, 72675, 81073, 106675, 119225, 192015, 214605, 243219, 320025, 357675, 405365, 729657, 960075, 1073025, 1216095, 2026825, 3648285, 6080475, 18241425]

約数ペア:

[(1, 18241425), (3, 6080475), (5, 3648285), (9, 2026825), (15, 1216095), (17, 1073025), (19, 960075), (25, 729657), (45, 405365), (51, 357675), (57, 320025), (75, 243219), (85, 214605), (95, 192015), (153, 119225), (171, 106675), (225, 81073), (251, 72675), (255, 71535), (285, 64005), (323, 56475), (425, 42921), (475, 38403), (753, 24225), (765, 23845), (855, 21335), (969, 18825), (1255, 14535), (1275, 14307), (1425, 12801), (1615, 11295), (2259, 8075), (2907, 6275), (3765, 4845), (3825, 4769), (4267, 4275)]