81998592

素因数分解:

$2^8\times 3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{191}}^1$

素因数の和:266

約数の個数: 144

約数和(自身を含む): 241747968

約数和(自身を除く): 159749376

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 32, 39, 43, 48, 52, 64, 78, 86, 96, 104, 128, 129, 156, 172, 191, 192, 208, 256, 258, 312, 344, 382, 384, 416, 516, 559, 573, 624, 688, 764, 768, 832, 1032, 1118, 1146, 1248, 1376, 1528, 1664, 1677, 2064, 2236, 2292, 2483, 2496, 2752, 3056, 3328, 3354, 4128, 4472, 4584, 4966, 4992, 5504, 6112, 6708, 7449, 8213, 8256, 8944, 9168, 9932, 9984, 11008, 12224, 13416, 14898, 16426, 16512, 17888, 18336, 19864, 24448, 24639, 26832, 29796, 32852, 33024, 35776, 36672, 39728, 48896, 49278, 53664, 59592, 65704, 71552, 73344, 79456, 98556, 106769, 107328, 119184, 131408, 143104, 146688, 158912, 197112, 213538, 214656, 238368, 262816, 317824, 320307, 394224, 427076, 429312, 476736, 525632, 635648, 640614, 788448, 854152, 953472, 1051264, 1281228, 1576896, 1708304, 1906944, 2102528, 2562456, 3153792, 3416608, 5124912, 6307584, 6833216, 10249824, 13666432, 20499648, 27332864, 40999296, 81998592]

約数ペア:

[(1, 81998592), (2, 40999296), (3, 27332864), (4, 20499648), (6, 13666432), (8, 10249824), (12, 6833216), (13, 6307584), (16, 5124912), (24, 3416608), (26, 3153792), (32, 2562456), (39, 2102528), (43, 1906944), (48, 1708304), (52, 1576896), (64, 1281228), (78, 1051264), (86, 953472), (96, 854152), (104, 788448), (128, 640614), (129, 635648), (156, 525632), (172, 476736), (191, 429312), (192, 427076), (208, 394224), (256, 320307), (258, 317824), (312, 262816), (344, 238368), (382, 214656), (384, 213538), (416, 197112), (516, 158912), (559, 146688), (573, 143104), (624, 131408), (688, 119184), (764, 107328), (768, 106769), (832, 98556), (1032, 79456), (1118, 73344), (1146, 71552), (1248, 65704), (1376, 59592), (1528, 53664), (1664, 49278), (1677, 48896), (2064, 39728), (2236, 36672), (2292, 35776), (2483, 33024), (2496, 32852), (2752, 29796), (3056, 26832), (3328, 24639), (3354, 24448), (4128, 19864), (4472, 18336), (4584, 17888), (4966, 16512), (4992, 16426), (5504, 14898), (6112, 13416), (6708, 12224), (7449, 11008), (8213, 9984), (8256, 9932), (8944, 9168)]