20307820120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{1009}}^1\times {\mathrm{71881}}^1$

素因数の和:72908

約数の個数: 64

約数和(自身を含む): 52272590400

約数和(自身を除く): 31964770280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 1009, 2018, 4036, 5045, 7063, 8072, 10090, 14126, 20180, 28252, 35315, 40360, 56504, 70630, 71881, 141260, 143762, 282520, 287524, 359405, 503167, 575048, 718810, 1006334, 1437620, 2012668, 2515835, 2875240, 4025336, 5031670, 10063340, 20126680, 72527929, 145055858, 290111716, 362639645, 507695503, 580223432, 725279290, 1015391006, 1450558580, 2030782012, 2538477515, 2901117160, 4061564024, 5076955030, 10153910060, 20307820120]

約数ペア:

[(1, 20307820120), (2, 10153910060), (4, 5076955030), (5, 4061564024), (7, 2901117160), (8, 2538477515), (10, 2030782012), (14, 1450558580), (20, 1015391006), (28, 725279290), (35, 580223432), (40, 507695503), (56, 362639645), (70, 290111716), (140, 145055858), (280, 72527929), (1009, 20126680), (2018, 10063340), (4036, 5031670), (5045, 4025336), (7063, 2875240), (8072, 2515835), (10090, 2012668), (14126, 1437620), (20180, 1006334), (28252, 718810), (35315, 575048), (40360, 503167), (56504, 359405), (70630, 287524), (71881, 282520), (141260, 143762)]