12781800

素因数分解:

$2^3\times 3^5\times 5^2\times {\mathrm{263}}^1$

素因数の和:294

約数の個数: 144

約数和(自身を含む): 44684640

約数和(自身を除く): 31902840

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 25, 27, 30, 36, 40, 45, 50, 54, 60, 72, 75, 81, 90, 100, 108, 120, 135, 150, 162, 180, 200, 216, 225, 243, 263, 270, 300, 324, 360, 405, 450, 486, 526, 540, 600, 648, 675, 789, 810, 900, 972, 1052, 1080, 1215, 1315, 1350, 1578, 1620, 1800, 1944, 2025, 2104, 2367, 2430, 2630, 2700, 3156, 3240, 3945, 4050, 4734, 4860, 5260, 5400, 6075, 6312, 6575, 7101, 7890, 8100, 9468, 9720, 10520, 11835, 12150, 13150, 14202, 15780, 16200, 18936, 19725, 21303, 23670, 24300, 26300, 28404, 31560, 35505, 39450, 42606, 47340, 48600, 52600, 56808, 59175, 63909, 71010, 78900, 85212, 94680, 106515, 118350, 127818, 142020, 157800, 170424, 177525, 213030, 236700, 255636, 284040, 319545, 355050, 426060, 473400, 511272, 532575, 639090, 710100, 852120, 1065150, 1278180, 1420200, 1597725, 2130300, 2556360, 3195450, 4260600, 6390900, 12781800]

約数ペア:

[(1, 12781800), (2, 6390900), (3, 4260600), (4, 3195450), (5, 2556360), (6, 2130300), (8, 1597725), (9, 1420200), (10, 1278180), (12, 1065150), (15, 852120), (18, 710100), (20, 639090), (24, 532575), (25, 511272), (27, 473400), (30, 426060), (36, 355050), (40, 319545), (45, 284040), (50, 255636), (54, 236700), (60, 213030), (72, 177525), (75, 170424), (81, 157800), (90, 142020), (100, 127818), (108, 118350), (120, 106515), (135, 94680), (150, 85212), (162, 78900), (180, 71010), (200, 63909), (216, 59175), (225, 56808), (243, 52600), (263, 48600), (270, 47340), (300, 42606), (324, 39450), (360, 35505), (405, 31560), (450, 28404), (486, 26300), (526, 24300), (540, 23670), (600, 21303), (648, 19725), (675, 18936), (789, 16200), (810, 15780), (900, 14202), (972, 13150), (1052, 12150), (1080, 11835), (1215, 10520), (1315, 9720), (1350, 9468), (1578, 8100), (1620, 7890), (1800, 7101), (1944, 6575), (2025, 6312), (2104, 6075), (2367, 5400), (2430, 5260), (2630, 4860), (2700, 4734), (3156, 4050), (3240, 3945)]