20704113920

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{619}}^1\times {\mathrm{3733}}^1$

素因数の和:4380

約数の個数: 144

約数和(自身を含む): 56784282240

約数和(自身を除く): 36080168320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 256, 280, 320, 448, 560, 619, 640, 896, 1120, 1238, 1280, 1792, 2240, 2476, 3095, 3733, 4333, 4480, 4952, 6190, 7466, 8666, 8960, 9904, 12380, 14932, 17332, 18665, 19808, 21665, 24760, 26131, 29864, 34664, 37330, 39616, 43330, 49520, 52262, 59728, 69328, 74660, 79232, 86660, 99040, 104524, 119456, 130655, 138656, 149320, 158464, 173320, 198080, 209048, 238912, 261310, 277312, 298640, 346640, 396160, 418096, 477824, 522620, 554624, 597280, 693280, 792320, 836192, 955648, 1045240, 1109248, 1194560, 1386560, 1672384, 2090480, 2310727, 2389120, 2773120, 3344768, 4180960, 4621454, 4778240, 5546240, 6689536, 8361920, 9242908, 11553635, 16175089, 16723840, 18485816, 23107270, 32350178, 33447680, 36971632, 46214540, 64700356, 73943264, 80875445, 92429080, 129400712, 147886528, 161750890, 184858160, 258801424, 295773056, 323501780, 369716320, 517602848, 591546112, 647003560, 739432640, 1035205696, 1294007120, 1478865280, 2070411392, 2588014240, 2957730560, 4140822784, 5176028480, 10352056960, 20704113920]

約数ペア:

[(1, 20704113920), (2, 10352056960), (4, 5176028480), (5, 4140822784), (7, 2957730560), (8, 2588014240), (10, 2070411392), (14, 1478865280), (16, 1294007120), (20, 1035205696), (28, 739432640), (32, 647003560), (35, 591546112), (40, 517602848), (56, 369716320), (64, 323501780), (70, 295773056), (80, 258801424), (112, 184858160), (128, 161750890), (140, 147886528), (160, 129400712), (224, 92429080), (256, 80875445), (280, 73943264), (320, 64700356), (448, 46214540), (560, 36971632), (619, 33447680), (640, 32350178), (896, 23107270), (1120, 18485816), (1238, 16723840), (1280, 16175089), (1792, 11553635), (2240, 9242908), (2476, 8361920), (3095, 6689536), (3733, 5546240), (4333, 4778240), (4480, 4621454), (4952, 4180960), (6190, 3344768), (7466, 2773120), (8666, 2389120), (8960, 2310727), (9904, 2090480), (12380, 1672384), (14932, 1386560), (17332, 1194560), (18665, 1109248), (19808, 1045240), (21665, 955648), (24760, 836192), (26131, 792320), (29864, 693280), (34664, 597280), (37330, 554624), (39616, 522620), (43330, 477824), (49520, 418096), (52262, 396160), (59728, 346640), (69328, 298640), (74660, 277312), (79232, 261310), (86660, 238912), (99040, 209048), (104524, 198080), (119456, 173320), (130655, 158464), (138656, 149320)]