20148479960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{509}}^1\times {\mathrm{1297}}^1$

素因数の和:1933

約数の個数: 128

約数和(自身を含む): 52428816000

約数和(自身を除く): 32280336040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 109, 140, 218, 280, 436, 509, 545, 763, 872, 1018, 1090, 1297, 1526, 2036, 2180, 2545, 2594, 3052, 3563, 3815, 4072, 4360, 5090, 5188, 6104, 6485, 7126, 7630, 9079, 10180, 10376, 12970, 14252, 15260, 17815, 18158, 20360, 25940, 28504, 30520, 35630, 36316, 45395, 51880, 55481, 71260, 72632, 90790, 110962, 141373, 142520, 181580, 221924, 277405, 282746, 363160, 388367, 443848, 554810, 565492, 660173, 706865, 776734, 989611, 1109620, 1130984, 1320346, 1413730, 1553468, 1941835, 1979222, 2219240, 2640692, 2827460, 3106936, 3300865, 3883670, 3958444, 4621211, 4948055, 5281384, 5654920, 6601730, 7767340, 7916888, 9242422, 9896110, 13203460, 15534680, 18484844, 19792220, 23106055, 26406920, 36969688, 39584440, 46212110, 71958857, 92424220, 143917714, 184848440, 287835428, 359794285, 503711999, 575670856, 719588570, 1007423998, 1439177140, 2014847996, 2518559995, 2878354280, 4029695992, 5037119990, 10074239980, 20148479960]

約数ペア:

[(1, 20148479960), (2, 10074239980), (4, 5037119990), (5, 4029695992), (7, 2878354280), (8, 2518559995), (10, 2014847996), (14, 1439177140), (20, 1007423998), (28, 719588570), (35, 575670856), (40, 503711999), (56, 359794285), (70, 287835428), (109, 184848440), (140, 143917714), (218, 92424220), (280, 71958857), (436, 46212110), (509, 39584440), (545, 36969688), (763, 26406920), (872, 23106055), (1018, 19792220), (1090, 18484844), (1297, 15534680), (1526, 13203460), (2036, 9896110), (2180, 9242422), (2545, 7916888), (2594, 7767340), (3052, 6601730), (3563, 5654920), (3815, 5281384), (4072, 4948055), (4360, 4621211), (5090, 3958444), (5188, 3883670), (6104, 3300865), (6485, 3106936), (7126, 2827460), (7630, 2640692), (9079, 2219240), (10180, 1979222), (10376, 1941835), (12970, 1553468), (14252, 1413730), (15260, 1320346), (17815, 1130984), (18158, 1109620), (20360, 989611), (25940, 776734), (28504, 706865), (30520, 660173), (35630, 565492), (36316, 554810), (45395, 443848), (51880, 388367), (55481, 363160), (71260, 282746), (72632, 277405), (90790, 221924), (110962, 181580), (141373, 142520)]