398884864

素因数分解:

$2^{15}\times 7^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1$

素因数の和:121

約数の個数: 128

約数和(自身を含む): 956286720

約数和(自身を除く): 557401856

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 37, 47, 56, 64, 74, 94, 112, 128, 148, 188, 224, 256, 259, 296, 329, 376, 448, 512, 518, 592, 658, 752, 896, 1024, 1036, 1184, 1316, 1504, 1739, 1792, 2048, 2072, 2368, 2632, 3008, 3478, 3584, 4096, 4144, 4736, 5264, 6016, 6956, 7168, 8192, 8288, 9472, 10528, 12032, 12173, 13912, 14336, 16384, 16576, 18944, 21056, 24064, 24346, 27824, 28672, 32768, 33152, 37888, 42112, 48128, 48692, 55648, 57344, 66304, 75776, 84224, 96256, 97384, 111296, 114688, 132608, 151552, 168448, 192512, 194768, 222592, 229376, 265216, 303104, 336896, 385024, 389536, 445184, 530432, 606208, 673792, 770048, 779072, 890368, 1060864, 1212416, 1347584, 1540096, 1558144, 1780736, 2121728, 2695168, 3116288, 3561472, 4243456, 5390336, 6232576, 7122944, 8486912, 10780672, 12465152, 14245888, 24930304, 28491776, 49860608, 56983552, 99721216, 199442432, 398884864]

約数ペア:

[(1, 398884864), (2, 199442432), (4, 99721216), (7, 56983552), (8, 49860608), (14, 28491776), (16, 24930304), (28, 14245888), (32, 12465152), (37, 10780672), (47, 8486912), (56, 7122944), (64, 6232576), (74, 5390336), (94, 4243456), (112, 3561472), (128, 3116288), (148, 2695168), (188, 2121728), (224, 1780736), (256, 1558144), (259, 1540096), (296, 1347584), (329, 1212416), (376, 1060864), (448, 890368), (512, 779072), (518, 770048), (592, 673792), (658, 606208), (752, 530432), (896, 445184), (1024, 389536), (1036, 385024), (1184, 336896), (1316, 303104), (1504, 265216), (1739, 229376), (1792, 222592), (2048, 194768), (2072, 192512), (2368, 168448), (2632, 151552), (3008, 132608), (3478, 114688), (3584, 111296), (4096, 97384), (4144, 96256), (4736, 84224), (5264, 75776), (6016, 66304), (6956, 57344), (7168, 55648), (8192, 48692), (8288, 48128), (9472, 42112), (10528, 37888), (12032, 33152), (12173, 32768), (13912, 28672), (14336, 27824), (16384, 24346), (16576, 24064), (18944, 21056)]