287939080

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{709}}^1$

素因数の和:815

約数の個数: 128

約数和(自身を含む): 772934400

約数和(自身を除く): 484995320

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 26, 40, 44, 52, 55, 65, 71, 88, 104, 110, 130, 142, 143, 220, 260, 284, 286, 355, 440, 520, 568, 572, 709, 710, 715, 781, 923, 1144, 1418, 1420, 1430, 1562, 1846, 2836, 2840, 2860, 3124, 3545, 3692, 3905, 4615, 5672, 5720, 6248, 7090, 7384, 7799, 7810, 9217, 9230, 10153, 14180, 15598, 15620, 18434, 18460, 20306, 28360, 31196, 31240, 36868, 36920, 38995, 40612, 46085, 50339, 50765, 62392, 73736, 77990, 81224, 92170, 100678, 101387, 101530, 155980, 184340, 201356, 202774, 203060, 251695, 311960, 368680, 402712, 405548, 406120, 503390, 506935, 553729, 654407, 811096, 1006780, 1013870, 1107458, 1308814, 2013560, 2027740, 2214916, 2617628, 2768645, 3272035, 4055480, 4429832, 5235256, 5537290, 6544070, 7198477, 11074580, 13088140, 14396954, 22149160, 26176280, 28793908, 35992385, 57587816, 71984770, 143969540, 287939080]

約数ペア:

[(1, 287939080), (2, 143969540), (4, 71984770), (5, 57587816), (8, 35992385), (10, 28793908), (11, 26176280), (13, 22149160), (20, 14396954), (22, 13088140), (26, 11074580), (40, 7198477), (44, 6544070), (52, 5537290), (55, 5235256), (65, 4429832), (71, 4055480), (88, 3272035), (104, 2768645), (110, 2617628), (130, 2214916), (142, 2027740), (143, 2013560), (220, 1308814), (260, 1107458), (284, 1013870), (286, 1006780), (355, 811096), (440, 654407), (520, 553729), (568, 506935), (572, 503390), (709, 406120), (710, 405548), (715, 402712), (781, 368680), (923, 311960), (1144, 251695), (1418, 203060), (1420, 202774), (1430, 201356), (1562, 184340), (1846, 155980), (2836, 101530), (2840, 101387), (2860, 100678), (3124, 92170), (3545, 81224), (3692, 77990), (3905, 73736), (4615, 62392), (5672, 50765), (5720, 50339), (6248, 46085), (7090, 40612), (7384, 38995), (7799, 36920), (7810, 36868), (9217, 31240), (9230, 31196), (10153, 28360), (14180, 20306), (15598, 18460), (15620, 18434)]