661332546

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{83}}^1\times {\mathrm{107}}^1\times {\mathrm{197}}^1$

素因数の和:405

約数の個数: 128

約数和(自身を含む): 1724405760

約数和(自身を除く): 1063073214

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 83, 107, 126, 166, 189, 197, 214, 249, 321, 378, 394, 498, 581, 591, 642, 747, 749, 963, 1162, 1182, 1379, 1494, 1498, 1743, 1773, 1926, 2241, 2247, 2758, 2889, 3486, 3546, 4137, 4482, 4494, 5229, 5319, 5778, 6741, 8274, 8881, 10458, 10638, 12411, 13482, 15687, 16351, 17762, 20223, 21079, 24822, 26643, 31374, 32702, 37233, 40446, 42158, 49053, 53286, 62167, 63237, 74466, 79929, 98106, 114457, 124334, 126474, 147159, 147553, 159858, 186501, 189711, 228914, 239787, 294318, 295106, 343371, 373002, 379422, 441477, 442659, 479574, 559503, 569133, 686742, 882954, 885318, 1030113, 1119006, 1138266, 1327977, 1678509, 1749557, 2060226, 2655954, 3090339, 3357018, 3499114, 3983931, 5248671, 6180678, 7967862, 10497342, 12246899, 15746013, 24493798, 31492026, 36740697, 47238039, 73481394, 94476078, 110222091, 220444182, 330666273, 661332546]

約数ペア:

[(1, 661332546), (2, 330666273), (3, 220444182), (6, 110222091), (7, 94476078), (9, 73481394), (14, 47238039), (18, 36740697), (21, 31492026), (27, 24493798), (42, 15746013), (54, 12246899), (63, 10497342), (83, 7967862), (107, 6180678), (126, 5248671), (166, 3983931), (189, 3499114), (197, 3357018), (214, 3090339), (249, 2655954), (321, 2060226), (378, 1749557), (394, 1678509), (498, 1327977), (581, 1138266), (591, 1119006), (642, 1030113), (747, 885318), (749, 882954), (963, 686742), (1162, 569133), (1182, 559503), (1379, 479574), (1494, 442659), (1498, 441477), (1743, 379422), (1773, 373002), (1926, 343371), (2241, 295106), (2247, 294318), (2758, 239787), (2889, 228914), (3486, 189711), (3546, 186501), (4137, 159858), (4482, 147553), (4494, 147159), (5229, 126474), (5319, 124334), (5778, 114457), (6741, 98106), (8274, 79929), (8881, 74466), (10458, 63237), (10638, 62167), (12411, 53286), (13482, 49053), (15687, 42158), (16351, 40446), (17762, 37233), (20223, 32702), (21079, 31374), (24822, 26643)]