20786779440

素因数分解:

$2^4\times 3^3\times 5^1\times 7^1\times {\mathrm{1374787}}^1$

素因数の和:1374816

約数の個数: 160

約数和(自身を含む): 81827381760

約数和(自身を除く): 61040602320

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 70, 72, 80, 84, 90, 105, 108, 112, 120, 126, 135, 140, 144, 168, 180, 189, 210, 216, 240, 252, 270, 280, 315, 336, 360, 378, 420, 432, 504, 540, 560, 630, 720, 756, 840, 945, 1008, 1080, 1260, 1512, 1680, 1890, 2160, 2520, 3024, 3780, 5040, 7560, 15120, 1374787, 2749574, 4124361, 5499148, 6873935, 8248722, 9623509, 10998296, 12373083, 13747870, 16497444, 19247018, 20621805, 21996592, 24746166, 27495740, 28870527, 32994888, 37119249, 38494036, 41243610, 48117545, 49492332, 54991480, 57741054, 61865415, 65989776, 74238498, 76988072, 82487220, 86611581, 96235090, 98984664, 109982960, 115482108, 123730830, 144352635, 148476996, 153976144, 164974440, 173223162, 185596245, 192470180, 197969328, 230964216, 247461660, 259834743, 288705270, 296953992, 329948880, 346446324, 371192490, 384940360, 433057905, 461928432, 494923320, 519669486, 577410540, 593907984, 692892648, 742384980, 769880720, 866115810, 989846640, 1039338972, 1154821080, 1299173715, 1385785296, 1484769960, 1732231620, 2078677944, 2309642160, 2598347430, 2969539920, 3464463240, 4157355888, 5196694860, 6928926480, 10393389720, 20786779440]

約数ペア:

[(1, 20786779440), (2, 10393389720), (3, 6928926480), (4, 5196694860), (5, 4157355888), (6, 3464463240), (7, 2969539920), (8, 2598347430), (9, 2309642160), (10, 2078677944), (12, 1732231620), (14, 1484769960), (15, 1385785296), (16, 1299173715), (18, 1154821080), (20, 1039338972), (21, 989846640), (24, 866115810), (27, 769880720), (28, 742384980), (30, 692892648), (35, 593907984), (36, 577410540), (40, 519669486), (42, 494923320), (45, 461928432), (48, 433057905), (54, 384940360), (56, 371192490), (60, 346446324), (63, 329948880), (70, 296953992), (72, 288705270), (80, 259834743), (84, 247461660), (90, 230964216), (105, 197969328), (108, 192470180), (112, 185596245), (120, 173223162), (126, 164974440), (135, 153976144), (140, 148476996), (144, 144352635), (168, 123730830), (180, 115482108), (189, 109982960), (210, 98984664), (216, 96235090), (240, 86611581), (252, 82487220), (270, 76988072), (280, 74238498), (315, 65989776), (336, 61865415), (360, 57741054), (378, 54991480), (420, 49492332), (432, 48117545), (504, 41243610), (540, 38494036), (560, 37119249), (630, 32994888), (720, 28870527), (756, 27495740), (840, 24746166), (945, 21996592), (1008, 20621805), (1080, 19247018), (1260, 16497444), (1512, 13747870), (1680, 12373083), (1890, 10998296), (2160, 9623509), (2520, 8248722), (3024, 6873935), (3780, 5499148), (5040, 4124361), (7560, 2749574), (15120, 1374787)]