1987496144

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{1171}}^1$

素因数の和:1324

約数の個数: 80

約数和(自身を含む): 4108713216

約数和(自身を除く): 2121217072

約数列:

[1, 2, 4, 8, 16, 37, 47, 61, 74, 94, 122, 148, 188, 244, 296, 376, 488, 592, 752, 976, 1171, 1739, 2257, 2342, 2867, 3478, 4514, 4684, 5734, 6956, 9028, 9368, 11468, 13912, 18056, 18736, 22936, 27824, 36112, 43327, 45872, 55037, 71431, 86654, 106079, 110074, 142862, 173308, 212158, 220148, 285724, 346616, 424316, 440296, 571448, 693232, 848632, 880592, 1142896, 1697264, 2036369, 2642947, 3357257, 4072738, 5285894, 6714514, 8145476, 10571788, 13429028, 16290952, 21143576, 26858056, 32581904, 42287152, 53716112, 124218509, 248437018, 496874036, 993748072, 1987496144]

約数ペア:

[(1, 1987496144), (2, 993748072), (4, 496874036), (8, 248437018), (16, 124218509), (37, 53716112), (47, 42287152), (61, 32581904), (74, 26858056), (94, 21143576), (122, 16290952), (148, 13429028), (188, 10571788), (244, 8145476), (296, 6714514), (376, 5285894), (488, 4072738), (592, 3357257), (752, 2642947), (976, 2036369), (1171, 1697264), (1739, 1142896), (2257, 880592), (2342, 848632), (2867, 693232), (3478, 571448), (4514, 440296), (4684, 424316), (5734, 346616), (6956, 285724), (9028, 220148), (9368, 212158), (11468, 173308), (13912, 142862), (18056, 110074), (18736, 106079), (22936, 86654), (27824, 71431), (36112, 55037), (43327, 45872)]