20275408088

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{161521}}^1$

素因数の和:161628

約数の個数: 64

約数和(自身を含む): 43959827520

約数和(自身を除く): 23684419432

約数列:

[1, 2, 4, 8, 13, 17, 26, 34, 52, 68, 71, 104, 136, 142, 221, 284, 442, 568, 884, 923, 1207, 1768, 1846, 2414, 3692, 4828, 7384, 9656, 15691, 31382, 62764, 125528, 161521, 323042, 646084, 1292168, 2099773, 2745857, 4199546, 5491714, 8399092, 10983428, 11467991, 16798184, 21966856, 22935982, 35696141, 45871964, 71392282, 91743928, 142784564, 149083883, 194955847, 285569128, 298167766, 389911694, 596335532, 779823388, 1192671064, 1559646776, 2534426011, 5068852022, 10137704044, 20275408088]

約数ペア:

[(1, 20275408088), (2, 10137704044), (4, 5068852022), (8, 2534426011), (13, 1559646776), (17, 1192671064), (26, 779823388), (34, 596335532), (52, 389911694), (68, 298167766), (71, 285569128), (104, 194955847), (136, 149083883), (142, 142784564), (221, 91743928), (284, 71392282), (442, 45871964), (568, 35696141), (884, 22935982), (923, 21966856), (1207, 16798184), (1768, 11467991), (1846, 10983428), (2414, 8399092), (3692, 5491714), (4828, 4199546), (7384, 2745857), (9656, 2099773), (15691, 1292168), (31382, 646084), (62764, 323042), (125528, 161521)]