131165398

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{457}}^1$

素因数の和:581

約数の個数: 64

約数和(自身を含む): 258531840

約数和(自身を除く): 127366442

約数列:

[1, 2, 7, 13, 14, 19, 26, 38, 83, 91, 133, 166, 182, 247, 266, 457, 494, 581, 914, 1079, 1162, 1577, 1729, 2158, 3154, 3199, 3458, 5941, 6398, 7553, 8683, 11039, 11882, 15106, 17366, 20501, 22078, 37931, 41002, 41587, 60781, 75862, 83174, 112879, 121562, 143507, 225758, 265517, 287014, 493103, 531034, 720689, 790153, 986206, 1441378, 1580306, 3451721, 5044823, 6903442, 9368957, 10089646, 18737914, 65582699, 131165398]

約数ペア:

[(1, 131165398), (2, 65582699), (7, 18737914), (13, 10089646), (14, 9368957), (19, 6903442), (26, 5044823), (38, 3451721), (83, 1580306), (91, 1441378), (133, 986206), (166, 790153), (182, 720689), (247, 531034), (266, 493103), (457, 287014), (494, 265517), (581, 225758), (914, 143507), (1079, 121562), (1162, 112879), (1577, 83174), (1729, 75862), (2158, 60781), (3154, 41587), (3199, 41002), (3458, 37931), (5941, 22078), (6398, 20501), (7553, 17366), (8683, 15106), (11039, 11882)]