280140304

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{197}}^1$

素因数の和:344

約数の個数: 80

約数和(自身を含む): 584534016

約数和(自身を除く): 304393712

約数列:

[1, 2, 4, 8, 16, 31, 47, 61, 62, 94, 122, 124, 188, 197, 244, 248, 376, 394, 488, 496, 752, 788, 976, 1457, 1576, 1891, 2867, 2914, 3152, 3782, 5734, 5828, 6107, 7564, 9259, 11468, 11656, 12017, 12214, 15128, 18518, 22936, 23312, 24034, 24428, 30256, 37036, 45872, 48068, 48856, 74072, 88877, 96136, 97712, 148144, 177754, 192272, 287029, 355508, 372527, 564799, 574058, 711016, 745054, 1129598, 1148116, 1422032, 1490108, 2259196, 2296232, 2980216, 4518392, 4592464, 5960432, 9036784, 17508769, 35017538, 70035076, 140070152, 280140304]

約数ペア:

[(1, 280140304), (2, 140070152), (4, 70035076), (8, 35017538), (16, 17508769), (31, 9036784), (47, 5960432), (61, 4592464), (62, 4518392), (94, 2980216), (122, 2296232), (124, 2259196), (188, 1490108), (197, 1422032), (244, 1148116), (248, 1129598), (376, 745054), (394, 711016), (488, 574058), (496, 564799), (752, 372527), (788, 355508), (976, 287029), (1457, 192272), (1576, 177754), (1891, 148144), (2867, 97712), (2914, 96136), (3152, 88877), (3782, 74072), (5734, 48856), (5828, 48068), (6107, 45872), (7564, 37036), (9259, 30256), (11468, 24428), (11656, 24034), (12017, 23312), (12214, 22936), (15128, 18518)]