2205900

素因数分解:

$2^2\times 3^3\times 5^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1$

素因数の和:85

約数の個数: 144

約数和(自身を含む): 7638400

約数和(自身を除く): 5432500

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 25, 27, 30, 36, 38, 43, 45, 50, 54, 57, 60, 75, 76, 86, 90, 95, 100, 108, 114, 129, 135, 150, 171, 172, 180, 190, 215, 225, 228, 258, 270, 285, 300, 342, 380, 387, 430, 450, 475, 513, 516, 540, 570, 645, 675, 684, 774, 817, 855, 860, 900, 950, 1026, 1075, 1140, 1161, 1290, 1350, 1425, 1548, 1634, 1710, 1900, 1935, 2052, 2150, 2322, 2451, 2565, 2580, 2700, 2850, 3225, 3268, 3420, 3870, 4085, 4275, 4300, 4644, 4902, 5130, 5700, 5805, 6450, 7353, 7740, 8170, 8550, 9675, 9804, 10260, 11610, 12255, 12825, 12900, 14706, 16340, 17100, 19350, 20425, 22059, 23220, 24510, 25650, 29025, 29412, 36765, 38700, 40850, 44118, 49020, 51300, 58050, 61275, 73530, 81700, 88236, 110295, 116100, 122550, 147060, 183825, 220590, 245100, 367650, 441180, 551475, 735300, 1102950, 2205900]

約数ペア:

[(1, 2205900), (2, 1102950), (3, 735300), (4, 551475), (5, 441180), (6, 367650), (9, 245100), (10, 220590), (12, 183825), (15, 147060), (18, 122550), (19, 116100), (20, 110295), (25, 88236), (27, 81700), (30, 73530), (36, 61275), (38, 58050), (43, 51300), (45, 49020), (50, 44118), (54, 40850), (57, 38700), (60, 36765), (75, 29412), (76, 29025), (86, 25650), (90, 24510), (95, 23220), (100, 22059), (108, 20425), (114, 19350), (129, 17100), (135, 16340), (150, 14706), (171, 12900), (172, 12825), (180, 12255), (190, 11610), (215, 10260), (225, 9804), (228, 9675), (258, 8550), (270, 8170), (285, 7740), (300, 7353), (342, 6450), (380, 5805), (387, 5700), (430, 5130), (450, 4902), (475, 4644), (513, 4300), (516, 4275), (540, 4085), (570, 3870), (645, 3420), (675, 3268), (684, 3225), (774, 2850), (817, 2700), (855, 2580), (860, 2565), (900, 2451), (950, 2322), (1026, 2150), (1075, 2052), (1140, 1935), (1161, 1900), (1290, 1710), (1350, 1634), (1425, 1548)]