238426240

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{28657}}^1$

素因数の和:28689

約数の個数: 64

約数和(自身を含む): 613854360

約数和(自身を除く): 375428120

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 260, 320, 416, 520, 640, 832, 1040, 1664, 2080, 4160, 8320, 28657, 57314, 114628, 143285, 229256, 286570, 372541, 458512, 573140, 745082, 917024, 1146280, 1490164, 1834048, 1862705, 2292560, 2980328, 3668096, 3725410, 4585120, 5960656, 7450820, 9170240, 11921312, 14901640, 18340480, 23842624, 29803280, 47685248, 59606560, 119213120, 238426240]

約数ペア:

[(1, 238426240), (2, 119213120), (4, 59606560), (5, 47685248), (8, 29803280), (10, 23842624), (13, 18340480), (16, 14901640), (20, 11921312), (26, 9170240), (32, 7450820), (40, 5960656), (52, 4585120), (64, 3725410), (65, 3668096), (80, 2980328), (104, 2292560), (128, 1862705), (130, 1834048), (160, 1490164), (208, 1146280), (260, 917024), (320, 745082), (416, 573140), (520, 458512), (640, 372541), (832, 286570), (1040, 229256), (1664, 143285), (2080, 114628), (4160, 57314), (8320, 28657)]