20205360

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{211}}^1$

素因数の和:256

約数の個数: 240

約数和(自身を含む): 82018560

約数和(自身を除く): 61813200

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 19, 20, 21, 24, 28, 30, 35, 36, 38, 40, 42, 45, 48, 56, 57, 60, 63, 70, 72, 76, 80, 84, 90, 95, 105, 112, 114, 120, 126, 133, 140, 144, 152, 168, 171, 180, 190, 210, 211, 228, 240, 252, 266, 280, 285, 304, 315, 336, 342, 360, 380, 399, 420, 422, 456, 504, 532, 560, 570, 630, 633, 665, 684, 720, 760, 798, 840, 844, 855, 912, 1008, 1055, 1064, 1140, 1197, 1260, 1266, 1330, 1368, 1477, 1520, 1596, 1680, 1688, 1710, 1899, 1995, 2110, 2128, 2280, 2394, 2520, 2532, 2660, 2736, 2954, 3165, 3192, 3376, 3420, 3798, 3990, 4009, 4220, 4431, 4560, 4788, 5040, 5064, 5320, 5908, 5985, 6330, 6384, 6840, 7385, 7596, 7980, 8018, 8440, 8862, 9495, 9576, 10128, 10640, 11816, 11970, 12027, 12660, 13293, 13680, 14770, 15192, 15960, 16036, 16880, 17724, 18990, 19152, 20045, 22155, 23632, 23940, 24054, 25320, 26586, 28063, 29540, 30384, 31920, 32072, 35448, 36081, 37980, 40090, 44310, 47880, 48108, 50640, 53172, 56126, 59080, 60135, 64144, 66465, 70896, 72162, 75960, 80180, 84189, 88620, 95760, 96216, 106344, 112252, 118160, 120270, 132930, 140315, 144324, 151920, 160360, 168378, 177240, 180405, 192432, 212688, 224504, 240540, 252567, 265860, 280630, 288648, 320720, 336756, 354480, 360810, 420945, 449008, 481080, 505134, 531720, 561260, 577296, 673512, 721620, 841890, 962160, 1010268, 1063440, 1122520, 1262835, 1347024, 1443240, 1683780, 2020536, 2245040, 2525670, 2886480, 3367560, 4041072, 5051340, 6735120, 10102680, 20205360]

約数ペア:

[(1, 20205360), (2, 10102680), (3, 6735120), (4, 5051340), (5, 4041072), (6, 3367560), (7, 2886480), (8, 2525670), (9, 2245040), (10, 2020536), (12, 1683780), (14, 1443240), (15, 1347024), (16, 1262835), (18, 1122520), (19, 1063440), (20, 1010268), (21, 962160), (24, 841890), (28, 721620), (30, 673512), (35, 577296), (36, 561260), (38, 531720), (40, 505134), (42, 481080), (45, 449008), (48, 420945), (56, 360810), (57, 354480), (60, 336756), (63, 320720), (70, 288648), (72, 280630), (76, 265860), (80, 252567), (84, 240540), (90, 224504), (95, 212688), (105, 192432), (112, 180405), (114, 177240), (120, 168378), (126, 160360), (133, 151920), (140, 144324), (144, 140315), (152, 132930), (168, 120270), (171, 118160), (180, 112252), (190, 106344), (210, 96216), (211, 95760), (228, 88620), (240, 84189), (252, 80180), (266, 75960), (280, 72162), (285, 70896), (304, 66465), (315, 64144), (336, 60135), (342, 59080), (360, 56126), (380, 53172), (399, 50640), (420, 48108), (422, 47880), (456, 44310), (504, 40090), (532, 37980), (560, 36081), (570, 35448), (630, 32072), (633, 31920), (665, 30384), (684, 29540), (720, 28063), (760, 26586), (798, 25320), (840, 24054), (844, 23940), (855, 23632), (912, 22155), (1008, 20045), (1055, 19152), (1064, 18990), (1140, 17724), (1197, 16880), (1260, 16036), (1266, 15960), (1330, 15192), (1368, 14770), (1477, 13680), (1520, 13293), (1596, 12660), (1680, 12027), (1688, 11970), (1710, 11816), (1899, 10640), (1995, 10128), (2110, 9576), (2128, 9495), (2280, 8862), (2394, 8440), (2520, 8018), (2532, 7980), (2660, 7596), (2736, 7385), (2954, 6840), (3165, 6384), (3192, 6330), (3376, 5985), (3420, 5908), (3798, 5320), (3990, 5064), (4009, 5040), (4220, 4788), (4431, 4560)]