19980459814

素因数分解:

$2^1\times 7^2\times {\mathrm{131}}^1\times {\mathrm{271}}^1\times {\mathrm{5743}}^1$

素因数の和:6161

約数の個数: 48

約数和(自身を含む): 35265770496

約数和(自身を除く): 15285310682

約数列:

[1, 2, 7, 14, 49, 98, 131, 262, 271, 542, 917, 1834, 1897, 3794, 5743, 6419, 11486, 12838, 13279, 26558, 35501, 40201, 71002, 80402, 248507, 281407, 497014, 562814, 752333, 1504666, 1556353, 1739549, 3112706, 3479098, 5266331, 10532662, 10894471, 21788942, 36864317, 73728634, 76261297, 152522594, 203882243, 407764486, 1427175701, 2854351402, 9990229907, 19980459814]

約数ペア:

[(1, 19980459814), (2, 9990229907), (7, 2854351402), (14, 1427175701), (49, 407764486), (98, 203882243), (131, 152522594), (262, 76261297), (271, 73728634), (542, 36864317), (917, 21788942), (1834, 10894471), (1897, 10532662), (3794, 5266331), (5743, 3479098), (6419, 3112706), (11486, 1739549), (12838, 1556353), (13279, 1504666), (26558, 752333), (35501, 562814), (40201, 497014), (71002, 281407), (80402, 248507)]