20891679480

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{571}}^1\times {\mathrm{14519}}^1$

素因数の和:15114

約数の個数: 192

約数和(自身を含む): 77738918400

約数和(自身を除く): 56847238920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 56, 60, 63, 70, 72, 84, 90, 105, 120, 126, 140, 168, 180, 210, 252, 280, 315, 360, 420, 504, 571, 630, 840, 1142, 1260, 1713, 2284, 2520, 2855, 3426, 3997, 4568, 5139, 5710, 6852, 7994, 8565, 10278, 11420, 11991, 13704, 14519, 15988, 17130, 19985, 20556, 22840, 23982, 25695, 29038, 31976, 34260, 35973, 39970, 41112, 43557, 47964, 51390, 58076, 59955, 68520, 71946, 72595, 79940, 87114, 95928, 101633, 102780, 116152, 119910, 130671, 143892, 145190, 159880, 174228, 179865, 203266, 205560, 217785, 239820, 261342, 287784, 290380, 304899, 348456, 359730, 406532, 435570, 479640, 508165, 522684, 580760, 609798, 653355, 719460, 813064, 871140, 914697, 1016330, 1045368, 1219596, 1306710, 1438920, 1524495, 1742280, 1829394, 2032660, 2439192, 2613420, 3048990, 3658788, 4065320, 4573485, 5226840, 6097980, 7317576, 8290349, 9146970, 12195960, 16580698, 18293940, 24871047, 33161396, 36587880, 41451745, 49742094, 58032443, 66322792, 74613141, 82903490, 99484188, 116064886, 124355235, 149226282, 165806980, 174097329, 198968376, 232129772, 248710470, 290162215, 298452564, 331613960, 348194658, 373065705, 464259544, 497420940, 522291987, 580324430, 596905128, 696389316, 746131410, 870486645, 994841880, 1044583974, 1160648860, 1392778632, 1492262820, 1740973290, 2089167948, 2321297720, 2611459935, 2984525640, 3481946580, 4178335896, 5222919870, 6963893160, 10445839740, 20891679480]

約数ペア:

[(1, 20891679480), (2, 10445839740), (3, 6963893160), (4, 5222919870), (5, 4178335896), (6, 3481946580), (7, 2984525640), (8, 2611459935), (9, 2321297720), (10, 2089167948), (12, 1740973290), (14, 1492262820), (15, 1392778632), (18, 1160648860), (20, 1044583974), (21, 994841880), (24, 870486645), (28, 746131410), (30, 696389316), (35, 596905128), (36, 580324430), (40, 522291987), (42, 497420940), (45, 464259544), (56, 373065705), (60, 348194658), (63, 331613960), (70, 298452564), (72, 290162215), (84, 248710470), (90, 232129772), (105, 198968376), (120, 174097329), (126, 165806980), (140, 149226282), (168, 124355235), (180, 116064886), (210, 99484188), (252, 82903490), (280, 74613141), (315, 66322792), (360, 58032443), (420, 49742094), (504, 41451745), (571, 36587880), (630, 33161396), (840, 24871047), (1142, 18293940), (1260, 16580698), (1713, 12195960), (2284, 9146970), (2520, 8290349), (2855, 7317576), (3426, 6097980), (3997, 5226840), (4568, 4573485), (5139, 4065320), (5710, 3658788), (6852, 3048990), (7994, 2613420), (8565, 2439192), (10278, 2032660), (11420, 1829394), (11991, 1742280), (13704, 1524495), (14519, 1438920), (15988, 1306710), (17130, 1219596), (19985, 1045368), (20556, 1016330), (22840, 914697), (23982, 871140), (25695, 813064), (29038, 719460), (31976, 653355), (34260, 609798), (35973, 580760), (39970, 522684), (41112, 508165), (43557, 479640), (47964, 435570), (51390, 406532), (58076, 359730), (59955, 348456), (68520, 304899), (71946, 290380), (72595, 287784), (79940, 261342), (87114, 239820), (95928, 217785), (101633, 205560), (102780, 203266), (116152, 179865), (119910, 174228), (130671, 159880), (143892, 145190)]