20912011505

素因数分解:

$5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{5693}}^1$

素因数の和:5799

約数の個数: 96

約数和(自身を含む): 33650173440

約数和(自身を除く): 12738161935

約数列:

[1, 5, 7, 11, 29, 35, 47, 49, 55, 77, 145, 203, 235, 245, 319, 329, 385, 517, 539, 1015, 1363, 1421, 1595, 1645, 2233, 2303, 2585, 2695, 3619, 5693, 6815, 7105, 9541, 11165, 11515, 14993, 15631, 18095, 25333, 28465, 39851, 47705, 62623, 66787, 74965, 78155, 104951, 126665, 165097, 199255, 267571, 278957, 313115, 333935, 438361, 524755, 734657, 825485, 1155679, 1337855, 1394785, 1816067, 1872997, 2191805, 2943281, 3068527, 3673285, 5778395, 7759559, 8089753, 9080335, 9364985, 12712469, 13110979, 14716405, 15342635, 20602967, 38797795, 40448765, 54316913, 63562345, 65554895, 85355149, 88987283, 103014835, 144220769, 271584565, 380218391, 426775745, 444936415, 597486043, 721103845, 1901091955, 2987430215, 4182402301, 20912011505]

約数ペア:

[(1, 20912011505), (5, 4182402301), (7, 2987430215), (11, 1901091955), (29, 721103845), (35, 597486043), (47, 444936415), (49, 426775745), (55, 380218391), (77, 271584565), (145, 144220769), (203, 103014835), (235, 88987283), (245, 85355149), (319, 65554895), (329, 63562345), (385, 54316913), (517, 40448765), (539, 38797795), (1015, 20602967), (1363, 15342635), (1421, 14716405), (1595, 13110979), (1645, 12712469), (2233, 9364985), (2303, 9080335), (2585, 8089753), (2695, 7759559), (3619, 5778395), (5693, 3673285), (6815, 3068527), (7105, 2943281), (9541, 2191805), (11165, 1872997), (11515, 1816067), (14993, 1394785), (15631, 1337855), (18095, 1155679), (25333, 825485), (28465, 734657), (39851, 524755), (47705, 438361), (62623, 333935), (66787, 313115), (74965, 278957), (78155, 267571), (104951, 199255), (126665, 165097)]