389025

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1$

素因数の和:55

約数の個数: 72

約数和(自身を含む): 902720

約数和(自身を除く): 513695

約数列:

[1, 3, 5, 7, 9, 13, 15, 19, 21, 25, 35, 39, 45, 57, 63, 65, 75, 91, 95, 105, 117, 133, 171, 175, 195, 225, 247, 273, 285, 315, 325, 399, 455, 475, 525, 585, 665, 741, 819, 855, 975, 1197, 1235, 1365, 1425, 1575, 1729, 1995, 2223, 2275, 2925, 3325, 3705, 4095, 4275, 5187, 5985, 6175, 6825, 8645, 9975, 11115, 15561, 18525, 20475, 25935, 29925, 43225, 55575, 77805, 129675, 389025]

約数ペア:

[(1, 389025), (3, 129675), (5, 77805), (7, 55575), (9, 43225), (13, 29925), (15, 25935), (19, 20475), (21, 18525), (25, 15561), (35, 11115), (39, 9975), (45, 8645), (57, 6825), (63, 6175), (65, 5985), (75, 5187), (91, 4275), (95, 4095), (105, 3705), (117, 3325), (133, 2925), (171, 2275), (175, 2223), (195, 1995), (225, 1729), (247, 1575), (273, 1425), (285, 1365), (315, 1235), (325, 1197), (399, 975), (455, 855), (475, 819), (525, 741), (585, 665)]