261737216

素因数分解:

$2^8\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1$

素因数の和:162

約数の個数: 144

約数和(自身を含む): 604369920

約数和(自身を除く): 342632704

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 32, 43, 52, 59, 62, 64, 86, 104, 118, 124, 128, 172, 208, 236, 248, 256, 344, 403, 416, 472, 496, 559, 688, 767, 806, 832, 944, 992, 1118, 1333, 1376, 1534, 1612, 1664, 1829, 1888, 1984, 2236, 2537, 2666, 2752, 3068, 3224, 3328, 3658, 3776, 3968, 4472, 5074, 5332, 5504, 6136, 6448, 7316, 7552, 7936, 8944, 10148, 10664, 11008, 12272, 12896, 14632, 15104, 17329, 17888, 20296, 21328, 23777, 24544, 25792, 29264, 32981, 34658, 35776, 40592, 42656, 47554, 49088, 51584, 58528, 65962, 69316, 71552, 78647, 81184, 85312, 95108, 98176, 103168, 117056, 131924, 138632, 143104, 157294, 162368, 170624, 190216, 196352, 234112, 263848, 277264, 314588, 324736, 341248, 380432, 468224, 527696, 554528, 629176, 649472, 760864, 1022411, 1055392, 1109056, 1258352, 1521728, 2044822, 2110784, 2218112, 2516704, 3043456, 4089644, 4221568, 4436224, 5033408, 6086912, 8179288, 8443136, 10066816, 16358576, 20133632, 32717152, 65434304, 130868608, 261737216]

約数ペア:

[(1, 261737216), (2, 130868608), (4, 65434304), (8, 32717152), (13, 20133632), (16, 16358576), (26, 10066816), (31, 8443136), (32, 8179288), (43, 6086912), (52, 5033408), (59, 4436224), (62, 4221568), (64, 4089644), (86, 3043456), (104, 2516704), (118, 2218112), (124, 2110784), (128, 2044822), (172, 1521728), (208, 1258352), (236, 1109056), (248, 1055392), (256, 1022411), (344, 760864), (403, 649472), (416, 629176), (472, 554528), (496, 527696), (559, 468224), (688, 380432), (767, 341248), (806, 324736), (832, 314588), (944, 277264), (992, 263848), (1118, 234112), (1333, 196352), (1376, 190216), (1534, 170624), (1612, 162368), (1664, 157294), (1829, 143104), (1888, 138632), (1984, 131924), (2236, 117056), (2537, 103168), (2666, 98176), (2752, 95108), (3068, 85312), (3224, 81184), (3328, 78647), (3658, 71552), (3776, 69316), (3968, 65962), (4472, 58528), (5074, 51584), (5332, 49088), (5504, 47554), (6136, 42656), (6448, 40592), (7316, 35776), (7552, 34658), (7936, 32981), (8944, 29264), (10148, 25792), (10664, 24544), (11008, 23777), (12272, 21328), (12896, 20296), (14632, 17888), (15104, 17329)]