51631020

素因数分解:

$2^2\times 3^4\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{157}}^1$

素因数の和:214

約数の個数: 240

約数和(自身を含む): 192709440

約数和(自身を除く): 141078420

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 29, 30, 35, 36, 42, 45, 54, 58, 60, 63, 70, 81, 84, 87, 90, 105, 108, 116, 126, 135, 140, 145, 157, 162, 174, 180, 189, 203, 210, 252, 261, 270, 290, 314, 315, 324, 348, 378, 405, 406, 420, 435, 471, 522, 540, 567, 580, 609, 628, 630, 756, 783, 785, 810, 812, 870, 942, 945, 1015, 1044, 1099, 1134, 1218, 1260, 1305, 1413, 1566, 1570, 1620, 1740, 1827, 1884, 1890, 2030, 2198, 2268, 2349, 2355, 2436, 2610, 2826, 2835, 3045, 3132, 3140, 3297, 3654, 3780, 3915, 4060, 4239, 4396, 4553, 4698, 4710, 5220, 5481, 5495, 5652, 5670, 6090, 6594, 7065, 7308, 7830, 8478, 9106, 9135, 9396, 9420, 9891, 10962, 10990, 11340, 11745, 12180, 12717, 13188, 13659, 14130, 15660, 16443, 16485, 16956, 18212, 18270, 19782, 21195, 21924, 21980, 22765, 23490, 25434, 27318, 27405, 28260, 29673, 31871, 32886, 32970, 36540, 39564, 40977, 42390, 45530, 46980, 49455, 50868, 54636, 54810, 59346, 63585, 63742, 65772, 65940, 68295, 81954, 82215, 84780, 89019, 91060, 95613, 98910, 109620, 118692, 122931, 127170, 127484, 136590, 148365, 159355, 163908, 164430, 178038, 191226, 197820, 204885, 245862, 254340, 273180, 286839, 296730, 318710, 328860, 356076, 368793, 382452, 409770, 445095, 478065, 491724, 573678, 593460, 614655, 637420, 737586, 819540, 860517, 890190, 956130, 1147356, 1229310, 1434195, 1475172, 1721034, 1780380, 1843965, 1912260, 2458620, 2581551, 2868390, 3442068, 3687930, 4302585, 5163102, 5736780, 7375860, 8605170, 10326204, 12907755, 17210340, 25815510, 51631020]

約数ペア:

[(1, 51631020), (2, 25815510), (3, 17210340), (4, 12907755), (5, 10326204), (6, 8605170), (7, 7375860), (9, 5736780), (10, 5163102), (12, 4302585), (14, 3687930), (15, 3442068), (18, 2868390), (20, 2581551), (21, 2458620), (27, 1912260), (28, 1843965), (29, 1780380), (30, 1721034), (35, 1475172), (36, 1434195), (42, 1229310), (45, 1147356), (54, 956130), (58, 890190), (60, 860517), (63, 819540), (70, 737586), (81, 637420), (84, 614655), (87, 593460), (90, 573678), (105, 491724), (108, 478065), (116, 445095), (126, 409770), (135, 382452), (140, 368793), (145, 356076), (157, 328860), (162, 318710), (174, 296730), (180, 286839), (189, 273180), (203, 254340), (210, 245862), (252, 204885), (261, 197820), (270, 191226), (290, 178038), (314, 164430), (315, 163908), (324, 159355), (348, 148365), (378, 136590), (405, 127484), (406, 127170), (420, 122931), (435, 118692), (471, 109620), (522, 98910), (540, 95613), (567, 91060), (580, 89019), (609, 84780), (628, 82215), (630, 81954), (756, 68295), (783, 65940), (785, 65772), (810, 63742), (812, 63585), (870, 59346), (942, 54810), (945, 54636), (1015, 50868), (1044, 49455), (1099, 46980), (1134, 45530), (1218, 42390), (1260, 40977), (1305, 39564), (1413, 36540), (1566, 32970), (1570, 32886), (1620, 31871), (1740, 29673), (1827, 28260), (1884, 27405), (1890, 27318), (2030, 25434), (2198, 23490), (2268, 22765), (2349, 21980), (2355, 21924), (2436, 21195), (2610, 19782), (2826, 18270), (2835, 18212), (3045, 16956), (3132, 16485), (3140, 16443), (3297, 15660), (3654, 14130), (3780, 13659), (3915, 13188), (4060, 12717), (4239, 12180), (4396, 11745), (4553, 11340), (4698, 10990), (4710, 10962), (5220, 9891), (5481, 9420), (5495, 9396), (5652, 9135), (5670, 9106), (6090, 8478), (6594, 7830), (7065, 7308)]