657617380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{1559}}^1$

素因数の和:1729

約数の個数: 96

約数和(自身を含む): 1660538880

約数和(自身を除く): 1002921500

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 131, 140, 161, 230, 262, 322, 460, 524, 644, 655, 805, 917, 1310, 1559, 1610, 1834, 2620, 3013, 3118, 3220, 3668, 4585, 6026, 6236, 7795, 9170, 10913, 12052, 15065, 15590, 18340, 21091, 21826, 30130, 31180, 35857, 42182, 43652, 54565, 60260, 71714, 84364, 105455, 109130, 143428, 179285, 204229, 210910, 218260, 250999, 358570, 408458, 421820, 501998, 717140, 816916, 1003996, 1021145, 1254995, 1429603, 2042290, 2509990, 2859206, 4084580, 4697267, 5019980, 5718412, 7148015, 9394534, 14296030, 18789068, 23486335, 28592060, 32880869, 46972670, 65761738, 93945340, 131523476, 164404345, 328808690, 657617380]

約数ペア:

[(1, 657617380), (2, 328808690), (4, 164404345), (5, 131523476), (7, 93945340), (10, 65761738), (14, 46972670), (20, 32880869), (23, 28592060), (28, 23486335), (35, 18789068), (46, 14296030), (70, 9394534), (92, 7148015), (115, 5718412), (131, 5019980), (140, 4697267), (161, 4084580), (230, 2859206), (262, 2509990), (322, 2042290), (460, 1429603), (524, 1254995), (644, 1021145), (655, 1003996), (805, 816916), (917, 717140), (1310, 501998), (1559, 421820), (1610, 408458), (1834, 358570), (2620, 250999), (3013, 218260), (3118, 210910), (3220, 204229), (3668, 179285), (4585, 143428), (6026, 109130), (6236, 105455), (7795, 84364), (9170, 71714), (10913, 60260), (12052, 54565), (15065, 43652), (15590, 42182), (18340, 35857), (21091, 31180), (21826, 30130)]