2800979780

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{947}}^1\times {\mathrm{3607}}^1$

素因数の和:4604

約数の個数: 48

約数和(自身を含む): 6033557376

約数和(自身を除く): 3232577596

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 947, 1894, 3607, 3788, 4735, 7214, 9470, 14428, 18035, 18940, 36070, 38827, 72140, 77654, 147887, 155308, 194135, 295774, 388270, 591548, 739435, 776540, 1478870, 2957740, 3415829, 6831658, 13663316, 17079145, 34158290, 68316580, 140048989, 280097978, 560195956, 700244945, 1400489890, 2800979780]

約数ペア:

[(1, 2800979780), (2, 1400489890), (4, 700244945), (5, 560195956), (10, 280097978), (20, 140048989), (41, 68316580), (82, 34158290), (164, 17079145), (205, 13663316), (410, 6831658), (820, 3415829), (947, 2957740), (1894, 1478870), (3607, 776540), (3788, 739435), (4735, 591548), (7214, 388270), (9470, 295774), (14428, 194135), (18035, 155308), (18940, 147887), (36070, 77654), (38827, 72140)]