51720480

素因数分解:

$2^5\times 3^2\times 5^1\times 7^2\times {\mathrm{733}}^1$

素因数の和:768

約数の個数: 216

約数和(自身を含む): 205591932

約数和(自身を除く): 153871452

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 49, 56, 60, 63, 70, 72, 80, 84, 90, 96, 98, 105, 112, 120, 126, 140, 144, 147, 160, 168, 180, 196, 210, 224, 240, 245, 252, 280, 288, 294, 315, 336, 360, 392, 420, 441, 480, 490, 504, 560, 588, 630, 672, 720, 733, 735, 784, 840, 882, 980, 1008, 1120, 1176, 1260, 1440, 1466, 1470, 1568, 1680, 1764, 1960, 2016, 2199, 2205, 2352, 2520, 2932, 2940, 3360, 3528, 3665, 3920, 4398, 4410, 4704, 5040, 5131, 5864, 5880, 6597, 7056, 7330, 7840, 8796, 8820, 10080, 10262, 10995, 11728, 11760, 13194, 14112, 14660, 15393, 17592, 17640, 20524, 21990, 23456, 23520, 25655, 26388, 29320, 30786, 32985, 35184, 35280, 35917, 41048, 43980, 46179, 51310, 52776, 58640, 61572, 65970, 70368, 70560, 71834, 76965, 82096, 87960, 92358, 102620, 105552, 107751, 117280, 123144, 131940, 143668, 153930, 164192, 175920, 179585, 184716, 205240, 211104, 215502, 230895, 246288, 263880, 287336, 307860, 323253, 351840, 359170, 369432, 410480, 431004, 461790, 492576, 527760, 538755, 574672, 615720, 646506, 718340, 738864, 820960, 862008, 923580, 1055520, 1077510, 1149344, 1231440, 1293012, 1436680, 1477728, 1616265, 1724016, 1847160, 2155020, 2462880, 2586024, 2873360, 3232530, 3448032, 3694320, 4310040, 5172048, 5746720, 6465060, 7388640, 8620080, 10344096, 12930120, 17240160, 25860240, 51720480]

約数ペア:

[(1, 51720480), (2, 25860240), (3, 17240160), (4, 12930120), (5, 10344096), (6, 8620080), (7, 7388640), (8, 6465060), (9, 5746720), (10, 5172048), (12, 4310040), (14, 3694320), (15, 3448032), (16, 3232530), (18, 2873360), (20, 2586024), (21, 2462880), (24, 2155020), (28, 1847160), (30, 1724016), (32, 1616265), (35, 1477728), (36, 1436680), (40, 1293012), (42, 1231440), (45, 1149344), (48, 1077510), (49, 1055520), (56, 923580), (60, 862008), (63, 820960), (70, 738864), (72, 718340), (80, 646506), (84, 615720), (90, 574672), (96, 538755), (98, 527760), (105, 492576), (112, 461790), (120, 431004), (126, 410480), (140, 369432), (144, 359170), (147, 351840), (160, 323253), (168, 307860), (180, 287336), (196, 263880), (210, 246288), (224, 230895), (240, 215502), (245, 211104), (252, 205240), (280, 184716), (288, 179585), (294, 175920), (315, 164192), (336, 153930), (360, 143668), (392, 131940), (420, 123144), (441, 117280), (480, 107751), (490, 105552), (504, 102620), (560, 92358), (588, 87960), (630, 82096), (672, 76965), (720, 71834), (733, 70560), (735, 70368), (784, 65970), (840, 61572), (882, 58640), (980, 52776), (1008, 51310), (1120, 46179), (1176, 43980), (1260, 41048), (1440, 35917), (1466, 35280), (1470, 35184), (1568, 32985), (1680, 30786), (1764, 29320), (1960, 26388), (2016, 25655), (2199, 23520), (2205, 23456), (2352, 21990), (2520, 20524), (2932, 17640), (2940, 17592), (3360, 15393), (3528, 14660), (3665, 14112), (3920, 13194), (4398, 11760), (4410, 11728), (4704, 10995), (5040, 10262), (5131, 10080), (5864, 8820), (5880, 8796), (6597, 7840), (7056, 7330)]