78967280

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{6131}}^1$

素因数の和:6174

約数の個数: 80

約数和(自身を含む): 218985984

約数和(自身を除く): 140018704

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 35, 40, 46, 56, 70, 80, 92, 112, 115, 140, 161, 184, 230, 280, 322, 368, 460, 560, 644, 805, 920, 1288, 1610, 1840, 2576, 3220, 6131, 6440, 12262, 12880, 24524, 30655, 42917, 49048, 61310, 85834, 98096, 122620, 141013, 171668, 214585, 245240, 282026, 343336, 429170, 490480, 564052, 686672, 705065, 858340, 987091, 1128104, 1410130, 1716680, 1974182, 2256208, 2820260, 3433360, 3948364, 4935455, 5640520, 7896728, 9870910, 11281040, 15793456, 19741820, 39483640, 78967280]

約数ペア:

[(1, 78967280), (2, 39483640), (4, 19741820), (5, 15793456), (7, 11281040), (8, 9870910), (10, 7896728), (14, 5640520), (16, 4935455), (20, 3948364), (23, 3433360), (28, 2820260), (35, 2256208), (40, 1974182), (46, 1716680), (56, 1410130), (70, 1128104), (80, 987091), (92, 858340), (112, 705065), (115, 686672), (140, 564052), (161, 490480), (184, 429170), (230, 343336), (280, 282026), (322, 245240), (368, 214585), (460, 171668), (560, 141013), (644, 122620), (805, 98096), (920, 85834), (1288, 61310), (1610, 49048), (1840, 42917), (2576, 30655), (3220, 24524), (6131, 12880), (6440, 12262)]