291215869820

素因数分解:

$2^2\times 5^1\times {\mathrm{313}}^1\times {\mathrm{2111}}^1\times {\mathrm{22037}}^1$

素因数の和:24470

約数の個数: 48

約数和(自身を含む): 613825648128

約数和(自身を除く): 322609778308

約数列:

[1, 2, 4, 5, 10, 20, 313, 626, 1252, 1565, 2111, 3130, 4222, 6260, 8444, 10555, 21110, 22037, 42220, 44074, 88148, 110185, 220370, 440740, 660743, 1321486, 2642972, 3303715, 6607430, 6897581, 13214860, 13795162, 27590324, 34487905, 46520107, 68975810, 93040214, 137951620, 186080428, 232600535, 465201070, 930402140, 14560793491, 29121586982, 58243173964, 72803967455, 145607934910, 291215869820]

約数ペア:

[(1, 291215869820), (2, 145607934910), (4, 72803967455), (5, 58243173964), (10, 29121586982), (20, 14560793491), (313, 930402140), (626, 465201070), (1252, 232600535), (1565, 186080428), (2111, 137951620), (3130, 93040214), (4222, 68975810), (6260, 46520107), (8444, 34487905), (10555, 27590324), (21110, 13795162), (22037, 13214860), (42220, 6897581), (44074, 6607430), (88148, 3303715), (110185, 2642972), (220370, 1321486), (440740, 660743)]