639180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1$

素因数の和:135

約数の個数: 72

約数和(自身を含む): 2004912

約数和(自身を除く): 1365732

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 53, 60, 67, 90, 106, 134, 159, 180, 201, 212, 265, 268, 318, 335, 402, 477, 530, 603, 636, 670, 795, 804, 954, 1005, 1060, 1206, 1340, 1590, 1908, 2010, 2385, 2412, 3015, 3180, 3551, 4020, 4770, 6030, 7102, 9540, 10653, 12060, 14204, 17755, 21306, 31959, 35510, 42612, 53265, 63918, 71020, 106530, 127836, 159795, 213060, 319590, 639180]

約数ペア:

[(1, 639180), (2, 319590), (3, 213060), (4, 159795), (5, 127836), (6, 106530), (9, 71020), (10, 63918), (12, 53265), (15, 42612), (18, 35510), (20, 31959), (30, 21306), (36, 17755), (45, 14204), (53, 12060), (60, 10653), (67, 9540), (90, 7102), (106, 6030), (134, 4770), (159, 4020), (180, 3551), (201, 3180), (212, 3015), (265, 2412), (268, 2385), (318, 2010), (335, 1908), (402, 1590), (477, 1340), (530, 1206), (603, 1060), (636, 1005), (670, 954), (795, 804)]