19970280

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^2$

素因数の和:113

約数の個数: 192

約数和(自身を含む): 74433600

約数和(自身を除く): 54463320

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 18, 20, 22, 24, 27, 30, 33, 36, 40, 41, 44, 45, 54, 55, 60, 66, 72, 82, 88, 90, 99, 108, 110, 120, 123, 132, 135, 164, 165, 180, 198, 205, 216, 220, 246, 264, 270, 297, 328, 330, 360, 369, 396, 410, 440, 451, 492, 495, 540, 594, 615, 660, 738, 792, 820, 902, 984, 990, 1080, 1107, 1188, 1230, 1320, 1353, 1476, 1485, 1640, 1681, 1804, 1845, 1980, 2214, 2255, 2376, 2460, 2706, 2952, 2970, 3362, 3608, 3690, 3960, 4059, 4428, 4510, 4920, 5043, 5412, 5535, 5940, 6724, 6765, 7380, 8118, 8405, 8856, 9020, 10086, 10824, 11070, 11880, 12177, 13448, 13530, 14760, 15129, 16236, 16810, 18040, 18491, 20172, 20295, 22140, 24354, 25215, 27060, 30258, 32472, 33620, 36982, 40344, 40590, 44280, 45387, 48708, 50430, 54120, 55473, 60516, 60885, 67240, 73964, 75645, 81180, 90774, 92455, 97416, 100860, 110946, 121032, 121770, 147928, 151290, 162360, 166419, 181548, 184910, 201720, 221892, 226935, 243540, 277365, 302580, 332838, 363096, 369820, 443784, 453870, 487080, 499257, 554730, 605160, 665676, 739640, 832095, 907740, 998514, 1109460, 1331352, 1664190, 1815480, 1997028, 2218920, 2496285, 3328380, 3994056, 4992570, 6656760, 9985140, 19970280]

約数ペア:

[(1, 19970280), (2, 9985140), (3, 6656760), (4, 4992570), (5, 3994056), (6, 3328380), (8, 2496285), (9, 2218920), (10, 1997028), (11, 1815480), (12, 1664190), (15, 1331352), (18, 1109460), (20, 998514), (22, 907740), (24, 832095), (27, 739640), (30, 665676), (33, 605160), (36, 554730), (40, 499257), (41, 487080), (44, 453870), (45, 443784), (54, 369820), (55, 363096), (60, 332838), (66, 302580), (72, 277365), (82, 243540), (88, 226935), (90, 221892), (99, 201720), (108, 184910), (110, 181548), (120, 166419), (123, 162360), (132, 151290), (135, 147928), (164, 121770), (165, 121032), (180, 110946), (198, 100860), (205, 97416), (216, 92455), (220, 90774), (246, 81180), (264, 75645), (270, 73964), (297, 67240), (328, 60885), (330, 60516), (360, 55473), (369, 54120), (396, 50430), (410, 48708), (440, 45387), (451, 44280), (492, 40590), (495, 40344), (540, 36982), (594, 33620), (615, 32472), (660, 30258), (738, 27060), (792, 25215), (820, 24354), (902, 22140), (984, 20295), (990, 20172), (1080, 18491), (1107, 18040), (1188, 16810), (1230, 16236), (1320, 15129), (1353, 14760), (1476, 13530), (1485, 13448), (1640, 12177), (1681, 11880), (1804, 11070), (1845, 10824), (1980, 10086), (2214, 9020), (2255, 8856), (2376, 8405), (2460, 8118), (2706, 7380), (2952, 6765), (2970, 6724), (3362, 5940), (3608, 5535), (3690, 5412), (3960, 5043), (4059, 4920), (4428, 4510)]