808896640

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{40771}}^1$

素因数の和:40821

約数の個数: 64

約数和(自身を含む): 1996197120

約数和(自身を除く): 1187300480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 310, 320, 496, 620, 640, 992, 1240, 1984, 2480, 3968, 4960, 9920, 19840, 40771, 81542, 163084, 203855, 326168, 407710, 652336, 815420, 1263901, 1304672, 1630840, 2527802, 2609344, 3261680, 5055604, 5218688, 6319505, 6523360, 10111208, 12639010, 13046720, 20222416, 25278020, 26093440, 40444832, 50556040, 80889664, 101112080, 161779328, 202224160, 404448320, 808896640]

約数ペア:

[(1, 808896640), (2, 404448320), (4, 202224160), (5, 161779328), (8, 101112080), (10, 80889664), (16, 50556040), (20, 40444832), (31, 26093440), (32, 25278020), (40, 20222416), (62, 13046720), (64, 12639010), (80, 10111208), (124, 6523360), (128, 6319505), (155, 5218688), (160, 5055604), (248, 3261680), (310, 2609344), (320, 2527802), (496, 1630840), (620, 1304672), (640, 1263901), (992, 815420), (1240, 652336), (1984, 407710), (2480, 326168), (3968, 203855), (4960, 163084), (9920, 81542), (19840, 40771)]