398511386

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{83}}^1$

素因数の和:196

約数の個数: 128

約数和(自身を含む): 823689216

約数和(自身を除く): 425177830

約数列:

[1, 2, 7, 13, 14, 23, 26, 31, 37, 46, 62, 74, 83, 91, 161, 166, 182, 217, 259, 299, 322, 403, 434, 481, 518, 581, 598, 713, 806, 851, 962, 1079, 1147, 1162, 1426, 1702, 1909, 2093, 2158, 2294, 2573, 2821, 3071, 3367, 3818, 4186, 4991, 5146, 5642, 5957, 6142, 6734, 7553, 8029, 9269, 9982, 11063, 11914, 13363, 14911, 15106, 16058, 18011, 18538, 21497, 22126, 24817, 26381, 26726, 29822, 33449, 36022, 39923, 42994, 49634, 52762, 59179, 64883, 66898, 70633, 77441, 79846, 95201, 104377, 118358, 129766, 141266, 154882, 173719, 184667, 190402, 208754, 234143, 279461, 342953, 347438, 369334, 414253, 468286, 494431, 558922, 666407, 685906, 769327, 828506, 918229, 988862, 1237613, 1332814, 1538654, 1836458, 2189623, 2400671, 2475226, 4379246, 4801342, 5385289, 6427603, 8663291, 10770578, 12855206, 15327361, 17326582, 28465099, 30654722, 56930198, 199255693, 398511386]

約数ペア:

[(1, 398511386), (2, 199255693), (7, 56930198), (13, 30654722), (14, 28465099), (23, 17326582), (26, 15327361), (31, 12855206), (37, 10770578), (46, 8663291), (62, 6427603), (74, 5385289), (83, 4801342), (91, 4379246), (161, 2475226), (166, 2400671), (182, 2189623), (217, 1836458), (259, 1538654), (299, 1332814), (322, 1237613), (403, 988862), (434, 918229), (481, 828506), (518, 769327), (581, 685906), (598, 666407), (713, 558922), (806, 494431), (851, 468286), (962, 414253), (1079, 369334), (1147, 347438), (1162, 342953), (1426, 279461), (1702, 234143), (1909, 208754), (2093, 190402), (2158, 184667), (2294, 173719), (2573, 154882), (2821, 141266), (3071, 129766), (3367, 118358), (3818, 104377), (4186, 95201), (4991, 79846), (5146, 77441), (5642, 70633), (5957, 66898), (6142, 64883), (6734, 59179), (7553, 52762), (8029, 49634), (9269, 42994), (9982, 39923), (11063, 36022), (11914, 33449), (13363, 29822), (14911, 26726), (15106, 26381), (16058, 24817), (18011, 22126), (18538, 21497)]