291209984

素因数分解:

$2^8\times {\mathrm{13}}^2\times {\mathrm{53}}^1\times {\mathrm{127}}^1$

素因数の和:222

約数の個数: 108

約数和(自身を含む): 646361856

約数和(自身を除く): 355151872

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 53, 64, 104, 106, 127, 128, 169, 208, 212, 254, 256, 338, 416, 424, 508, 676, 689, 832, 848, 1016, 1352, 1378, 1651, 1664, 1696, 2032, 2704, 2756, 3302, 3328, 3392, 4064, 5408, 5512, 6604, 6731, 6784, 8128, 8957, 10816, 11024, 13208, 13462, 13568, 16256, 17914, 21463, 21632, 22048, 26416, 26924, 32512, 35828, 42926, 43264, 44096, 52832, 53848, 71656, 85852, 87503, 88192, 105664, 107696, 143312, 171704, 175006, 176384, 211328, 215392, 286624, 343408, 350012, 422656, 430784, 573248, 686816, 700024, 861568, 1137539, 1146496, 1373632, 1400048, 1723136, 2275078, 2292992, 2747264, 2800096, 4550156, 5494528, 5600192, 9100312, 11200384, 18200624, 22400768, 36401248, 72802496, 145604992, 291209984]

約数ペア:

[(1, 291209984), (2, 145604992), (4, 72802496), (8, 36401248), (13, 22400768), (16, 18200624), (26, 11200384), (32, 9100312), (52, 5600192), (53, 5494528), (64, 4550156), (104, 2800096), (106, 2747264), (127, 2292992), (128, 2275078), (169, 1723136), (208, 1400048), (212, 1373632), (254, 1146496), (256, 1137539), (338, 861568), (416, 700024), (424, 686816), (508, 573248), (676, 430784), (689, 422656), (832, 350012), (848, 343408), (1016, 286624), (1352, 215392), (1378, 211328), (1651, 176384), (1664, 175006), (1696, 171704), (2032, 143312), (2704, 107696), (2756, 105664), (3302, 88192), (3328, 87503), (3392, 85852), (4064, 71656), (5408, 53848), (5512, 52832), (6604, 44096), (6731, 43264), (6784, 42926), (8128, 35828), (8957, 32512), (10816, 26924), (11024, 26416), (13208, 22048), (13462, 21632), (13568, 21463), (16256, 17914)]