20172729920

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{233}}^1\times {\mathrm{38651}}^1$

素因数の和:38908

約数の個数: 112

約数和(自身を含む): 55135686528

約数和(自身を除く): 34962956608

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 140, 160, 224, 233, 280, 320, 448, 466, 560, 932, 1120, 1165, 1631, 1864, 2240, 2330, 3262, 3728, 4660, 6524, 7456, 8155, 9320, 13048, 14912, 16310, 18640, 26096, 32620, 37280, 38651, 52192, 65240, 74560, 77302, 104384, 130480, 154604, 193255, 260960, 270557, 309208, 386510, 521920, 541114, 618416, 773020, 1082228, 1236832, 1352785, 1546040, 2164456, 2473664, 2705570, 3092080, 4328912, 5411140, 6184160, 8657824, 9005683, 10822280, 12368320, 17315648, 18011366, 21644560, 36022732, 43289120, 45028415, 63039781, 72045464, 86578240, 90056830, 126079562, 144090928, 180113660, 252159124, 288181856, 315198905, 360227320, 504318248, 576363712, 630397810, 720454640, 1008636496, 1260795620, 1440909280, 2017272992, 2521591240, 2881818560, 4034545984, 5043182480, 10086364960, 20172729920]

約数ペア:

[(1, 20172729920), (2, 10086364960), (4, 5043182480), (5, 4034545984), (7, 2881818560), (8, 2521591240), (10, 2017272992), (14, 1440909280), (16, 1260795620), (20, 1008636496), (28, 720454640), (32, 630397810), (35, 576363712), (40, 504318248), (56, 360227320), (64, 315198905), (70, 288181856), (80, 252159124), (112, 180113660), (140, 144090928), (160, 126079562), (224, 90056830), (233, 86578240), (280, 72045464), (320, 63039781), (448, 45028415), (466, 43289120), (560, 36022732), (932, 21644560), (1120, 18011366), (1165, 17315648), (1631, 12368320), (1864, 10822280), (2240, 9005683), (2330, 8657824), (3262, 6184160), (3728, 5411140), (4660, 4328912), (6524, 3092080), (7456, 2705570), (8155, 2473664), (9320, 2164456), (13048, 1546040), (14912, 1352785), (16310, 1236832), (18640, 1082228), (26096, 773020), (32620, 618416), (37280, 541114), (38651, 521920), (52192, 386510), (65240, 309208), (74560, 270557), (77302, 260960), (104384, 193255), (130480, 154604)]