20421886940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{11220817}}^1$

素因数の和:11220846

約数の個数: 48

約数和(自身を含む): 52782727872

約数和(自身を除く): 32360840932

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, 11220817, 22441634, 44883268, 56104085, 78545719, 112208170, 145870621, 157091438, 224416340, 291741242, 314182876, 392728595, 583482484, 729353105, 785457190, 1021094347, 1458706210, 1570914380, 2042188694, 2917412420, 4084377388, 5105471735, 10210943470, 20421886940]

約数ペア:

[(1, 20421886940), (2, 10210943470), (4, 5105471735), (5, 4084377388), (7, 2917412420), (10, 2042188694), (13, 1570914380), (14, 1458706210), (20, 1021094347), (26, 785457190), (28, 729353105), (35, 583482484), (52, 392728595), (65, 314182876), (70, 291741242), (91, 224416340), (130, 157091438), (140, 145870621), (182, 112208170), (260, 78545719), (364, 56104085), (455, 44883268), (910, 22441634), (1820, 11220817)]