77784980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{541}}^1$

素因数の和:649

約数の個数: 96

約数和(自身を含む): 203965440

約数和(自身を除く): 126180460

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 79, 91, 130, 140, 158, 182, 260, 316, 364, 395, 455, 541, 553, 790, 910, 1027, 1082, 1106, 1580, 1820, 2054, 2164, 2212, 2705, 2765, 3787, 4108, 5135, 5410, 5530, 7033, 7189, 7574, 10270, 10820, 11060, 14066, 14378, 15148, 18935, 20540, 28132, 28756, 35165, 35945, 37870, 42739, 49231, 70330, 71890, 75740, 85478, 98462, 140660, 143780, 170956, 196924, 213695, 246155, 299173, 427390, 492310, 555607, 598346, 854780, 984620, 1111214, 1196692, 1495865, 2222428, 2778035, 2991730, 3889249, 5556070, 5983460, 7778498, 11112140, 15556996, 19446245, 38892490, 77784980]

約数ペア:

[(1, 77784980), (2, 38892490), (4, 19446245), (5, 15556996), (7, 11112140), (10, 7778498), (13, 5983460), (14, 5556070), (20, 3889249), (26, 2991730), (28, 2778035), (35, 2222428), (52, 1495865), (65, 1196692), (70, 1111214), (79, 984620), (91, 854780), (130, 598346), (140, 555607), (158, 492310), (182, 427390), (260, 299173), (316, 246155), (364, 213695), (395, 196924), (455, 170956), (541, 143780), (553, 140660), (790, 98462), (910, 85478), (1027, 75740), (1082, 71890), (1106, 70330), (1580, 49231), (1820, 42739), (2054, 37870), (2164, 35945), (2212, 35165), (2705, 28756), (2765, 28132), (3787, 20540), (4108, 18935), (5135, 15148), (5410, 14378), (5530, 14066), (7033, 11060), (7189, 10820), (7574, 10270)]