20172688445

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{467}}^1\times {\mathrm{683}}^1$

素因数の和:1314

約数の個数: 64

約数和(自身を含む): 30116136960

約数和(自身を除く): 9943448515

約数列:

[1, 5, 7, 13, 35, 65, 91, 139, 455, 467, 683, 695, 973, 1807, 2335, 3269, 3415, 4781, 4865, 6071, 8879, 9035, 12649, 16345, 23905, 30355, 42497, 44395, 62153, 63245, 64913, 94937, 212485, 310765, 318961, 324565, 454391, 474685, 664559, 843869, 1234181, 1594805, 2232727, 2271955, 3322795, 4146493, 4219345, 5907083, 6170905, 8639267, 11163635, 20732465, 29025451, 29535415, 43196335, 44335579, 145127255, 221677895, 310349053, 576362527, 1551745265, 2881812635, 4034537689, 20172688445]

約数ペア:

[(1, 20172688445), (5, 4034537689), (7, 2881812635), (13, 1551745265), (35, 576362527), (65, 310349053), (91, 221677895), (139, 145127255), (455, 44335579), (467, 43196335), (683, 29535415), (695, 29025451), (973, 20732465), (1807, 11163635), (2335, 8639267), (3269, 6170905), (3415, 5907083), (4781, 4219345), (4865, 4146493), (6071, 3322795), (8879, 2271955), (9035, 2232727), (12649, 1594805), (16345, 1234181), (23905, 843869), (30355, 664559), (42497, 474685), (44395, 454391), (62153, 324565), (63245, 318961), (64913, 310765), (94937, 212485)]