261300736

素因数分解:

$2^9\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{163}}^1$

素因数の和:313

約数の個数: 80

約数和(自身を含む): 547607808

約数和(自身を除く): 286307072

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 101, 124, 128, 163, 202, 248, 256, 326, 404, 496, 512, 652, 808, 992, 1304, 1616, 1984, 2608, 3131, 3232, 3968, 5053, 5216, 6262, 6464, 7936, 10106, 10432, 12524, 12928, 15872, 16463, 20212, 20864, 25048, 25856, 32926, 40424, 41728, 50096, 51712, 65852, 80848, 83456, 100192, 131704, 161696, 200384, 263408, 323392, 400768, 510353, 526816, 646784, 801536, 1020706, 1053632, 1293568, 1603072, 2041412, 2107264, 2587136, 4082824, 4214528, 8165648, 8429056, 16331296, 32662592, 65325184, 130650368, 261300736]

約数ペア:

[(1, 261300736), (2, 130650368), (4, 65325184), (8, 32662592), (16, 16331296), (31, 8429056), (32, 8165648), (62, 4214528), (64, 4082824), (101, 2587136), (124, 2107264), (128, 2041412), (163, 1603072), (202, 1293568), (248, 1053632), (256, 1020706), (326, 801536), (404, 646784), (496, 526816), (512, 510353), (652, 400768), (808, 323392), (992, 263408), (1304, 200384), (1616, 161696), (1984, 131704), (2608, 100192), (3131, 83456), (3232, 80848), (3968, 65852), (5053, 51712), (5216, 50096), (6262, 41728), (6464, 40424), (7936, 32926), (10106, 25856), (10432, 25048), (12524, 20864), (12928, 20212), (15872, 16463)]