20085570828

素因数分解:

$2^2\times 3^2\times {\mathrm{79}}^1\times {\mathrm{109}}^1\times {\mathrm{64793}}^1$

素因数の和:64991

約数の個数: 72

約数和(自身を含む): 51887035200

約数和(自身を除く): 31801464372

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 79, 109, 158, 218, 237, 316, 327, 436, 474, 654, 711, 948, 981, 1308, 1422, 1962, 2844, 3924, 8611, 17222, 25833, 34444, 51666, 64793, 77499, 103332, 129586, 154998, 194379, 259172, 309996, 388758, 583137, 777516, 1166274, 2332548, 5118647, 7062437, 10237294, 14124874, 15355941, 20474588, 21187311, 28249748, 30711882, 42374622, 46067823, 61423764, 63561933, 84749244, 92135646, 127123866, 184271292, 254247732, 557932523, 1115865046, 1673797569, 2231730092, 3347595138, 5021392707, 6695190276, 10042785414, 20085570828]

約数ペア:

[(1, 20085570828), (2, 10042785414), (3, 6695190276), (4, 5021392707), (6, 3347595138), (9, 2231730092), (12, 1673797569), (18, 1115865046), (36, 557932523), (79, 254247732), (109, 184271292), (158, 127123866), (218, 92135646), (237, 84749244), (316, 63561933), (327, 61423764), (436, 46067823), (474, 42374622), (654, 30711882), (711, 28249748), (948, 21187311), (981, 20474588), (1308, 15355941), (1422, 14124874), (1962, 10237294), (2844, 7062437), (3924, 5118647), (8611, 2332548), (17222, 1166274), (25833, 777516), (34444, 583137), (51666, 388758), (64793, 309996), (77499, 259172), (103332, 194379), (129586, 154998)]