291289180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{160049}}^1$

素因数の和:160078

約数の個数: 48

約数和(自身を含む): 752875200

約数和(自身を除く): 461586020

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 160049, 320098, 640196, 800245, 1120343, 1600490, 2080637, 2240686, 3200980, 4161274, 4481372, 5601715, 8322548, 10403185, 11203430, 14564459, 20806370, 22406860, 29128918, 41612740, 58257836, 72822295, 145644590, 291289180]

約数ペア:

[(1, 291289180), (2, 145644590), (4, 72822295), (5, 58257836), (7, 41612740), (10, 29128918), (13, 22406860), (14, 20806370), (20, 14564459), (26, 11203430), (28, 10403185), (35, 8322548), (52, 5601715), (65, 4481372), (70, 4161274), (91, 3200980), (130, 2240686), (140, 2080637), (182, 1600490), (260, 1120343), (364, 800245), (455, 640196), (910, 320098), (1820, 160049)]