256828544

素因数分解:

$2^7\times 7^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{127}}^1$

素因数の和:246

約数の個数: 128

約数和(自身を含む): 615198720

約数和(自身を除く): 358370176

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 37, 56, 61, 64, 74, 112, 122, 127, 128, 148, 224, 244, 254, 259, 296, 427, 448, 488, 508, 518, 592, 854, 889, 896, 976, 1016, 1036, 1184, 1708, 1778, 1952, 2032, 2072, 2257, 2368, 3416, 3556, 3904, 4064, 4144, 4514, 4699, 4736, 6832, 7112, 7747, 7808, 8128, 8288, 9028, 9398, 13664, 14224, 15494, 15799, 16256, 16576, 18056, 18796, 27328, 28448, 30988, 31598, 32893, 33152, 36112, 37592, 54229, 54656, 56896, 61976, 63196, 65786, 72224, 75184, 108458, 113792, 123952, 126392, 131572, 144448, 150368, 216916, 247904, 252784, 263144, 286639, 288896, 300736, 433832, 495808, 505568, 526288, 573278, 601472, 867664, 991616, 1011136, 1052576, 1146556, 1735328, 2006473, 2022272, 2105152, 2293112, 3470656, 4012946, 4210304, 4586224, 6941312, 8025892, 9172448, 16051784, 18344896, 32103568, 36689792, 64207136, 128414272, 256828544]

約数ペア:

[(1, 256828544), (2, 128414272), (4, 64207136), (7, 36689792), (8, 32103568), (14, 18344896), (16, 16051784), (28, 9172448), (32, 8025892), (37, 6941312), (56, 4586224), (61, 4210304), (64, 4012946), (74, 3470656), (112, 2293112), (122, 2105152), (127, 2022272), (128, 2006473), (148, 1735328), (224, 1146556), (244, 1052576), (254, 1011136), (259, 991616), (296, 867664), (427, 601472), (448, 573278), (488, 526288), (508, 505568), (518, 495808), (592, 433832), (854, 300736), (889, 288896), (896, 286639), (976, 263144), (1016, 252784), (1036, 247904), (1184, 216916), (1708, 150368), (1778, 144448), (1952, 131572), (2032, 126392), (2072, 123952), (2257, 113792), (2368, 108458), (3416, 75184), (3556, 72224), (3904, 65786), (4064, 63196), (4144, 61976), (4514, 56896), (4699, 54656), (4736, 54229), (6832, 37592), (7112, 36112), (7747, 33152), (7808, 32893), (8128, 31598), (8288, 30988), (9028, 28448), (9398, 27328), (13664, 18796), (14224, 18056), (15494, 16576), (15799, 16256)]