642967218

素因数分解:

$2^1\times 3^2\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{127}}^1\times {\mathrm{211}}^1$

素因数の和:420

約数の個数: 96

約数和(自身を含む): 1490092032

約数和(自身を除く): 847124814

約数列:

[1, 2, 3, 6, 9, 18, 31, 43, 62, 86, 93, 127, 129, 186, 211, 254, 258, 279, 381, 387, 422, 558, 633, 762, 774, 1143, 1266, 1333, 1899, 2286, 2666, 3798, 3937, 3999, 5461, 6541, 7874, 7998, 9073, 10922, 11811, 11997, 13082, 16383, 18146, 19623, 23622, 23994, 26797, 27219, 32766, 35433, 39246, 49149, 53594, 54438, 58869, 70866, 80391, 81657, 98298, 117738, 160782, 163314, 169291, 241173, 281263, 338582, 482346, 507873, 562526, 830707, 843789, 1015746, 1152271, 1523619, 1661414, 1687578, 2304542, 2492121, 2531367, 3047238, 3456813, 4984242, 5062734, 6913626, 7476363, 10370439, 14952726, 20740878, 35720401, 71440802, 107161203, 214322406, 321483609, 642967218]

約数ペア:

[(1, 642967218), (2, 321483609), (3, 214322406), (6, 107161203), (9, 71440802), (18, 35720401), (31, 20740878), (43, 14952726), (62, 10370439), (86, 7476363), (93, 6913626), (127, 5062734), (129, 4984242), (186, 3456813), (211, 3047238), (254, 2531367), (258, 2492121), (279, 2304542), (381, 1687578), (387, 1661414), (422, 1523619), (558, 1152271), (633, 1015746), (762, 843789), (774, 830707), (1143, 562526), (1266, 507873), (1333, 482346), (1899, 338582), (2286, 281263), (2666, 241173), (3798, 169291), (3937, 163314), (3999, 160782), (5461, 117738), (6541, 98298), (7874, 81657), (7998, 80391), (9073, 70866), (10922, 58869), (11811, 54438), (11997, 53594), (13082, 49149), (16383, 39246), (18146, 35433), (19623, 32766), (23622, 27219), (23994, 26797)]