20147756584

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{421}}^1\times {\mathrm{7487}}^1$

素因数の和:7978

約数の個数: 64

約数和(自身を含む): 40952770560

約数和(自身を除く): 20805013976

約数列:

[1, 2, 4, 8, 17, 34, 47, 68, 94, 136, 188, 376, 421, 799, 842, 1598, 1684, 3196, 3368, 6392, 7157, 7487, 14314, 14974, 19787, 28628, 29948, 39574, 57256, 59896, 79148, 127279, 158296, 254558, 336379, 351889, 509116, 672758, 703778, 1018232, 1345516, 1407556, 2691032, 2815112, 3152027, 5982113, 6304054, 11964226, 12608108, 23928452, 25216216, 47856904, 53584459, 107168918, 148145269, 214337836, 296290538, 428675672, 592581076, 1185162152, 2518469573, 5036939146, 10073878292, 20147756584]

約数ペア:

[(1, 20147756584), (2, 10073878292), (4, 5036939146), (8, 2518469573), (17, 1185162152), (34, 592581076), (47, 428675672), (68, 296290538), (94, 214337836), (136, 148145269), (188, 107168918), (376, 53584459), (421, 47856904), (799, 25216216), (842, 23928452), (1598, 12608108), (1684, 11964226), (3196, 6304054), (3368, 5982113), (6392, 3152027), (7157, 2815112), (7487, 2691032), (14314, 1407556), (14974, 1345516), (19787, 1018232), (28628, 703778), (29948, 672758), (39574, 509116), (57256, 351889), (59896, 336379), (79148, 254558), (127279, 158296)]