19968960

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1$

素因数の和:123

約数の個数: 224

約数和(自身を含む): 72566784

約数和(自身を除く): 52597824

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 31, 32, 33, 40, 44, 48, 55, 60, 61, 62, 64, 66, 80, 88, 93, 96, 110, 120, 122, 124, 132, 155, 160, 165, 176, 183, 186, 192, 220, 240, 244, 248, 264, 305, 310, 320, 330, 341, 352, 366, 372, 440, 465, 480, 488, 496, 528, 610, 620, 660, 671, 682, 704, 732, 744, 880, 915, 930, 960, 976, 992, 1023, 1056, 1220, 1240, 1320, 1342, 1364, 1464, 1488, 1705, 1760, 1830, 1860, 1891, 1952, 1984, 2013, 2046, 2112, 2440, 2480, 2640, 2684, 2728, 2928, 2976, 3355, 3410, 3520, 3660, 3720, 3782, 3904, 4026, 4092, 4880, 4960, 5115, 5280, 5368, 5456, 5673, 5856, 5952, 6710, 6820, 7320, 7440, 7564, 8052, 8184, 9455, 9760, 9920, 10065, 10230, 10560, 10736, 10912, 11346, 11712, 13420, 13640, 14640, 14880, 15128, 16104, 16368, 18910, 19520, 20130, 20460, 20801, 21472, 21824, 22692, 26840, 27280, 28365, 29280, 29760, 30256, 32208, 32736, 37820, 40260, 40920, 41602, 42944, 45384, 53680, 54560, 56730, 58560, 60512, 62403, 64416, 65472, 75640, 80520, 81840, 83204, 90768, 104005, 107360, 109120, 113460, 121024, 124806, 128832, 151280, 161040, 163680, 166408, 181536, 208010, 214720, 226920, 249612, 302560, 312015, 322080, 327360, 332816, 363072, 416020, 453840, 499224, 605120, 624030, 644160, 665632, 832040, 907680, 998448, 1248060, 1331264, 1664080, 1815360, 1996896, 2496120, 3328160, 3993792, 4992240, 6656320, 9984480, 19968960]

約数ペア:

[(1, 19968960), (2, 9984480), (3, 6656320), (4, 4992240), (5, 3993792), (6, 3328160), (8, 2496120), (10, 1996896), (11, 1815360), (12, 1664080), (15, 1331264), (16, 1248060), (20, 998448), (22, 907680), (24, 832040), (30, 665632), (31, 644160), (32, 624030), (33, 605120), (40, 499224), (44, 453840), (48, 416020), (55, 363072), (60, 332816), (61, 327360), (62, 322080), (64, 312015), (66, 302560), (80, 249612), (88, 226920), (93, 214720), (96, 208010), (110, 181536), (120, 166408), (122, 163680), (124, 161040), (132, 151280), (155, 128832), (160, 124806), (165, 121024), (176, 113460), (183, 109120), (186, 107360), (192, 104005), (220, 90768), (240, 83204), (244, 81840), (248, 80520), (264, 75640), (305, 65472), (310, 64416), (320, 62403), (330, 60512), (341, 58560), (352, 56730), (366, 54560), (372, 53680), (440, 45384), (465, 42944), (480, 41602), (488, 40920), (496, 40260), (528, 37820), (610, 32736), (620, 32208), (660, 30256), (671, 29760), (682, 29280), (704, 28365), (732, 27280), (744, 26840), (880, 22692), (915, 21824), (930, 21472), (960, 20801), (976, 20460), (992, 20130), (1023, 19520), (1056, 18910), (1220, 16368), (1240, 16104), (1320, 15128), (1342, 14880), (1364, 14640), (1464, 13640), (1488, 13420), (1705, 11712), (1760, 11346), (1830, 10912), (1860, 10736), (1891, 10560), (1952, 10230), (1984, 10065), (2013, 9920), (2046, 9760), (2112, 9455), (2440, 8184), (2480, 8052), (2640, 7564), (2684, 7440), (2728, 7320), (2928, 6820), (2976, 6710), (3355, 5952), (3410, 5856), (3520, 5673), (3660, 5456), (3720, 5368), (3782, 5280), (3904, 5115), (4026, 4960), (4092, 4880)]