1287900

素因数分解:

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

素因数の和:82

約数の個数: 108

約数和(自身を含む): 4265352

約数和(自身を除く): 2977452

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 27, 30, 36, 45, 50, 53, 54, 60, 75, 81, 90, 100, 106, 108, 135, 150, 159, 162, 180, 212, 225, 243, 265, 270, 300, 318, 324, 405, 450, 477, 486, 530, 540, 636, 675, 795, 810, 900, 954, 972, 1060, 1215, 1325, 1350, 1431, 1590, 1620, 1908, 2025, 2385, 2430, 2650, 2700, 2862, 3180, 3975, 4050, 4293, 4770, 4860, 5300, 5724, 6075, 7155, 7950, 8100, 8586, 9540, 11925, 12150, 12879, 14310, 15900, 17172, 21465, 23850, 24300, 25758, 28620, 35775, 42930, 47700, 51516, 64395, 71550, 85860, 107325, 128790, 143100, 214650, 257580, 321975, 429300, 643950, 1287900]

約数ペア:

[(1, 1287900), (2, 643950), (3, 429300), (4, 321975), (5, 257580), (6, 214650), (9, 143100), (10, 128790), (12, 107325), (15, 85860), (18, 71550), (20, 64395), (25, 51516), (27, 47700), (30, 42930), (36, 35775), (45, 28620), (50, 25758), (53, 24300), (54, 23850), (60, 21465), (75, 17172), (81, 15900), (90, 14310), (100, 12879), (106, 12150), (108, 11925), (135, 9540), (150, 8586), (159, 8100), (162, 7950), (180, 7155), (212, 6075), (225, 5724), (243, 5300), (265, 4860), (270, 4770), (300, 4293), (318, 4050), (324, 3975), (405, 3180), (450, 2862), (477, 2700), (486, 2650), (530, 2430), (540, 2385), (636, 2025), (675, 1908), (795, 1620), (810, 1590), (900, 1431), (954, 1350), (972, 1325), (1060, 1215)]