72809451

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{139}}^1$

素因数の和:217

約数の個数: 72

約数和(自身を含む): 128775920

約数和(自身を除く): 55966469

約数列:

[1, 3, 9, 11, 13, 33, 37, 39, 99, 111, 117, 121, 139, 143, 333, 363, 407, 417, 429, 481, 1089, 1221, 1251, 1287, 1443, 1529, 1573, 1807, 3663, 4329, 4477, 4587, 4719, 5143, 5291, 5421, 13431, 13761, 14157, 15429, 15873, 16263, 16819, 19877, 40293, 46287, 47619, 50457, 56573, 58201, 59631, 66859, 151371, 169719, 174603, 178893, 200577, 218647, 509157, 523809, 601731, 622303, 655941, 735449, 1866909, 1967823, 2206347, 5600727, 6619041, 8089939, 24269817, 72809451]

約数ペア:

[(1, 72809451), (3, 24269817), (9, 8089939), (11, 6619041), (13, 5600727), (33, 2206347), (37, 1967823), (39, 1866909), (99, 735449), (111, 655941), (117, 622303), (121, 601731), (139, 523809), (143, 509157), (333, 218647), (363, 200577), (407, 178893), (417, 174603), (429, 169719), (481, 151371), (1089, 66859), (1221, 59631), (1251, 58201), (1287, 56573), (1443, 50457), (1529, 47619), (1573, 46287), (1807, 40293), (3663, 19877), (4329, 16819), (4477, 16263), (4587, 15873), (4719, 15429), (5143, 14157), (5291, 13761), (5421, 13431)]