20199674320

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{563}}^1\times {\mathrm{811}}^1$

素因数の和:1473

約数の個数: 160

約数和(自身を含む): 54516510720

約数和(自身を除く): 34316836400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 79, 80, 112, 140, 158, 280, 316, 395, 553, 560, 563, 632, 790, 811, 1106, 1126, 1264, 1580, 1622, 2212, 2252, 2765, 2815, 3160, 3244, 3941, 4055, 4424, 4504, 5530, 5630, 5677, 6320, 6488, 7882, 8110, 8848, 9008, 11060, 11260, 11354, 12976, 15764, 16220, 19705, 22120, 22520, 22708, 28385, 31528, 32440, 39410, 44240, 44477, 45040, 45416, 56770, 63056, 64069, 64880, 78820, 88954, 90832, 113540, 128138, 157640, 177908, 222385, 227080, 256276, 311339, 315280, 320345, 355816, 444770, 448483, 454160, 456593, 512552, 622678, 640690, 711632, 889540, 896966, 913186, 1025104, 1245356, 1281380, 1556695, 1779080, 1793932, 1826372, 2242415, 2282965, 2490712, 2562760, 3113390, 3196151, 3558160, 3587864, 3652744, 4484830, 4565930, 4981424, 5125520, 6226780, 6392302, 7175728, 7305488, 8969660, 9131860, 12453560, 12784604, 15980755, 17939320, 18263720, 24907120, 25569208, 31961510, 35878640, 36070847, 36527440, 51138416, 63923020, 72141694, 127846040, 144283388, 180354235, 252495929, 255692080, 288566776, 360708470, 504991858, 577133552, 721416940, 1009983716, 1262479645, 1442833880, 2019967432, 2524959290, 2885667760, 4039934864, 5049918580, 10099837160, 20199674320]

約数ペア:

[(1, 20199674320), (2, 10099837160), (4, 5049918580), (5, 4039934864), (7, 2885667760), (8, 2524959290), (10, 2019967432), (14, 1442833880), (16, 1262479645), (20, 1009983716), (28, 721416940), (35, 577133552), (40, 504991858), (56, 360708470), (70, 288566776), (79, 255692080), (80, 252495929), (112, 180354235), (140, 144283388), (158, 127846040), (280, 72141694), (316, 63923020), (395, 51138416), (553, 36527440), (560, 36070847), (563, 35878640), (632, 31961510), (790, 25569208), (811, 24907120), (1106, 18263720), (1126, 17939320), (1264, 15980755), (1580, 12784604), (1622, 12453560), (2212, 9131860), (2252, 8969660), (2765, 7305488), (2815, 7175728), (3160, 6392302), (3244, 6226780), (3941, 5125520), (4055, 4981424), (4424, 4565930), (4504, 4484830), (5530, 3652744), (5630, 3587864), (5677, 3558160), (6320, 3196151), (6488, 3113390), (7882, 2562760), (8110, 2490712), (8848, 2282965), (9008, 2242415), (11060, 1826372), (11260, 1793932), (11354, 1779080), (12976, 1556695), (15764, 1281380), (16220, 1245356), (19705, 1025104), (22120, 913186), (22520, 896966), (22708, 889540), (28385, 711632), (31528, 640690), (32440, 622678), (39410, 512552), (44240, 456593), (44477, 454160), (45040, 448483), (45416, 444770), (56770, 355816), (63056, 320345), (64069, 315280), (64880, 311339), (78820, 256276), (88954, 227080), (90832, 222385), (113540, 177908), (128138, 157640)]