781455668

素因数分解:

$2^2\times 7^1\times {\mathrm{97}}^1\times {\mathrm{107}}^1\times {\mathrm{2689}}^1$

素因数の和:2904

約数の個数: 48

約数和(自身を含む): 1594373760

約数和(自身を除く): 812918092

約数列:

[1, 2, 4, 7, 14, 28, 97, 107, 194, 214, 388, 428, 679, 749, 1358, 1498, 2689, 2716, 2996, 5378, 10379, 10756, 18823, 20758, 37646, 41516, 72653, 75292, 145306, 260833, 287723, 290612, 521666, 575446, 1043332, 1150892, 1825831, 2014061, 3651662, 4028122, 7303324, 8056244, 27909131, 55818262, 111636524, 195363917, 390727834, 781455668]

約数ペア:

[(1, 781455668), (2, 390727834), (4, 195363917), (7, 111636524), (14, 55818262), (28, 27909131), (97, 8056244), (107, 7303324), (194, 4028122), (214, 3651662), (388, 2014061), (428, 1825831), (679, 1150892), (749, 1043332), (1358, 575446), (1498, 521666), (2689, 290612), (2716, 287723), (2996, 260833), (5378, 145306), (10379, 75292), (10756, 72653), (18823, 41516), (20758, 37646)]