25766913280

素因数分解:

$2^8\times 5^1\times {\mathrm{643}}^1\times {\mathrm{31307}}^1$

素因数の和:31971

約数の個数: 72

約数和(自身を含む): 61817771232

約数和(自身を除く): 36050857952

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 643, 1280, 1286, 2572, 3215, 5144, 6430, 10288, 12860, 20576, 25720, 31307, 41152, 51440, 62614, 82304, 102880, 125228, 156535, 164608, 205760, 250456, 313070, 411520, 500912, 626140, 823040, 1001824, 1252280, 2003648, 2504560, 4007296, 5009120, 8014592, 10018240, 20036480, 20130401, 40072960, 40260802, 80521604, 100652005, 161043208, 201304010, 322086416, 402608020, 644172832, 805216040, 1288345664, 1610432080, 2576691328, 3220864160, 5153382656, 6441728320, 12883456640, 25766913280]

約数ペア:

[(1, 25766913280), (2, 12883456640), (4, 6441728320), (5, 5153382656), (8, 3220864160), (10, 2576691328), (16, 1610432080), (20, 1288345664), (32, 805216040), (40, 644172832), (64, 402608020), (80, 322086416), (128, 201304010), (160, 161043208), (256, 100652005), (320, 80521604), (640, 40260802), (643, 40072960), (1280, 20130401), (1286, 20036480), (2572, 10018240), (3215, 8014592), (5144, 5009120), (6430, 4007296), (10288, 2504560), (12860, 2003648), (20576, 1252280), (25720, 1001824), (31307, 823040), (41152, 626140), (51440, 500912), (62614, 411520), (82304, 313070), (102880, 250456), (125228, 205760), (156535, 164608)]